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23 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHQuick stereo help

Reported repair

Repair wiring

Reported resolution
1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fixed the wiring that was electrical taped, hooked the rear speakers up, hooked all the correct wires up, and still no retaining memory and settings.

Quick stereo help
Read full discussion summary

Leading evidence: 'Repair wiring' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Repair wiring' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Repair wiring', supported by resolution reports in 1 discussions. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 23 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Reconnect ignition wire and see if the

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Reconnect ignition wire and see if the setting kept

Quick stereo help

Replace with a double din unit

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I decided to replace with a double din unit from CAI, great guys to deal with, thanks Rennlist for turning me on to them!

Quick stereo help

Run wire

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

That will rule out the head unit, if the process above is successful its the car at fault, piggyback the constant off another fuse in the fuse box thats switched with a jumper and run a wire to the head unit.

Quick stereo help

Set kept

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Reconnect ignition wire and see if the setting kept

Quick stereo help
Frequently discussed actions (5)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Repair wiring

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fixed the wiring that was electrical taped, hooked the rear speakers up, hooked all the correct wires up, and still no retaining memory and settings.

Quick stereo help

Reconnect ignition wire and see if the

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Reconnect ignition wire and see if the setting kept

Quick stereo help

Replace with a double din unit

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I decided to replace with a double din unit from CAI, great guys to deal with, thanks Rennlist for turning me on to them!

Quick stereo help

Run wire

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

That will rule out the head unit, if the process above is successful its the car at fault, piggyback the constant off another fuse in the fuse box thats switched with a jumper and run a wire to the head unit.

Quick stereo help

Set kept

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Reconnect ignition wire and see if the setting kept

Quick stereo help
Actions with reported resolution accounts (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Repair wiring

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fixed the wiring that was electrical taped, hooked the rear speakers up, hooked all the correct wires up, and still no retaining memory and settings.

Quick stereo help
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

23 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T093253Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

i am pretty handy with stereos, mine came with an aftermarket one that won't kept its memory after the car is turned off, so I am wanting to Check out the wiring. I am this far, but seems like there is a bolt or something holding the trim and vents in place. Anyone know where it is or what I am missing? Thanks in advance!

POST 2Original post

It's the head unit Hawk. Remove it and unplug the cable harness, and the center bracket should slide out, but again, the stereo must be removed first. Normally, the HU is locked into a mounting adapter (i.e. alum. cage) that will require left and right keys to unlock it. This is a security thing.

POST 3 / ORIGINAL POSTEROriginal post

I found the key for the stereo, got it out, and found wires electrical tapes all over the place. This was a pretty **** poor install. I think I will go to a stereo shop and have it cleaned up.

POST 4Original post

^^ Exactly. Look up the installation instructions for your particular unit, and removal will be the reverse. You will likely need some sort of thin tool to remove it. You've already removed more of the center stack than needed. Check out this for a basic head unit install reference. Edit: I didn't type fast enough! At that point, it's probably nearly as cost effective to just start over with a new HU! There are kits available ...

POST 5Original post

That looks like a Alpine HU, memory problem is the deck power wire need a continuous 12 volts source, and accessory wire hook to key switch power source, good one is the orange wire at the key switch.

POST 6Original post

Well, if the Becker audio/sound company had made a decent, reliable HU for the 996, then we probably wouldn't have to worry about making these changes. Becker used to make some of the best radios. In fact, my father, after he left the Navy (trained as an engineer), started an electronics shop and would install Becker in cars and felt they were some of the best that money could buy. Unfortunately, they got sloppy with the early MOST based systems like the CDR23, PCM1 and 2, etc. I really hope they make better versions in the future and it would be great to see them make a reliable replacement for single DIN and dual DIN applications. Something that could compete with Alpine, Blaupunkt, Pioneer, and other name brands.

POST 7Original post

i just went through a similar problem with my car. It came with a Pioneer single din, sounded fine but looked terrible, did not match the rest of the lighting or trim. I decided to replace with a double din unit from CAI, great guys to deal with, thanks Rennlist for turning me on to them! Anyway, that aftermarket unit was not coming out for love nor money, despite some Amazon sourced keys. Wound up taking the entire cupholder assembly out. The installer did a very nice job with the wiring, but had bent all the tabs for the cage in such a way that there was no way any key in the world alone would work. It's out now, I'm very glad I took my time and avoided breaking anything. The new unit is on the way, complete with wireing and Porsche startup screen.

POST 8Original post

+++ CAI. I purchased their kit - worked beautifully. Couple of months later I added kit for amp under passenger seat to power stock BOSE subwoofer box. CAI was awesome to work with. I really like my setup - Happy!

POST 9 / ORIGINAL POSTEROriginal post

So I had a mobile guy come out tonight. He was out with the car for 3 hours. Fixed the wiring that was electrical taped, hooked the rear speakers up, hooked all the correct wires up, and still no retaining memory and settings. Could be an issue with the head unit?

POST 10Original post

Sounds like an issue with the constant power/ignition power. Assuming that the mobile guy knows what he is doing (as power is car stereo 101) i'd say its the head unit at fault, or maybe a ground problem. Unless it is wired incorrectly and constant/ignition have been confused, that would cause those symptoms. Easy to test: 1. Remove the head unit 2. Connect both constant + ignition to a 12v battery (as well as ground) 3. Turn on head unit and save a setting 4. Remove ignition wire from 12v 5. Reconnect ignition wire and see if the setting kept That will rule out the head unit, if the process above is successful its the car at fault, piggyback the constant off another fuse in the fuse box thats switched with a jumper and run a wire to the head unit.

POST 11Original post

Hawk, normally I'd help you if this was a DIY project, but since you had a pro come and work on it, my best advice is call him and explain the radio is not working correctly. The car will provide switched and non-switched 12V current. Both 12V lines need to be connected to the HU for it to work properly.

POST 12 / ORIGINAL POSTEROriginal post

Sorry to bring this back to life. Never did get the stereo to retain its settings or memory. But another electrical thing is the interior lights. The dome light, map lights, and little puddle lights on the doors won't come on unless the key is turned to the on position. I am wondering if the same thing causing this to happen is what is messing with the stereo? I can't even switch the map lights on without the key, and it seems the puddle lights should come on when I open the door. What says you oh powerful gods of 996 electrical?? Thanks in advance.

POST 13Original post

maybe the first guy that put in the stereo swapped a relay to the wrong spot, or made all the interior lights and stereo constamt source put to the wrong source on the panel get another car/ or get a diagram and look at the whole panel and see if everything is correct

POST 14 / ORIGINAL POSTEROriginal post

Quotes source post: 13916686

Good advice. Any specific guidance? Pictures maybe? Sorry, I am a visual learner. And could the stereo and lights issue be due to the car going in to "transit mode"?

POST 15Original post

I dont have anything to look at unless you find a fuse diagram or get somebody to picture your exact same car

POST 16 / ORIGINAL POSTEROriginal post

Does anyone have an 02 C2 Cab they can post a picture or two of your fuse box with the cover off?

POST 17Original post

Quotes source post: 13917343

Mine a '03 but the fuse box is the same.

POST 18 / ORIGINAL POSTEROriginal post

Thanks b3freak, I am hoping it's something I can figure out. This "transport mode" that has to be cleared by the dealer, let's just say I hope it's not that.

POST 19 / ORIGINAL POSTEROriginal post

Looks like the only difference is a 5 amp where you have a 7.5 amp. Could that be the culprit?

POST 20Original post

"Transport mode"? Please explain. This is an aftermarket radio right? It's my opinion that your symptom of losing radio settings is attributed to the Head Unit not being connected to the right power. With these radios, you need switched and constant 12V. Switched 12V is needed to trigger the HU when the car is turned on or off, and constant 12V powers the unit and retains the memory settings while the vehicle is parked.

POST 21 / ORIGINAL POSTEROriginal post

None of my interior lights come on, unless the key is in the on position in the ignition. So I started looking that up and found stuff like this: So I wonder if this is effecting the stereo as well???

POST 22Original post

Quotes source post: 13918025

Are you talking about fuse C7 (bank C, #7)? If so, that fuse is not related to the radio wiring.

POST 23Original post

Quotes source post: 13918047

Oh, I got you. I never knew the car had such a feature. I've had cars towed and they usually don't care what mode they're end. hahaha Well, getting it back to "normal mode" would be a good first step which could solve electrical issues. But it appears that it has to be cleared by Porsche. ouch.

This is a source reference. Confirm exact model applicability in the original material.