7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNav head unit to aftermarket double din, Metra part #
Leading reported evidence
Combined work: Replace head unit by a local shop along + Use metra installation kit and it worked just fine
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
Replaced the head unit by a local shop along with rear camera. Used the metra installation kit and it worked just fine.
Nav head unit to aftermarket double din, Metra part #
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Read full discussion summary
Leading evidence: 'Combined work: Replace head unit by a local shop along + Use metra installation kit and it worked just fine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Combined work: Replace head unit by a local shop along + Use metra installation kit and it worked just fine' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. 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.
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
Next will be a new amplifier as I installed new 4" dash, 5.25 door speakers, and replaced the rear with 6.5 speakers.
Nav head unit to aftermarket double din, Metra part #
Replace head unit by a local shop along
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
Replaced the head unit by a local shop along with rear camera.
Nav head unit to aftermarket double din, Metra part #
Replace rear
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
Next will be a new amplifier as I installed new 4" dash, 5.25 door speakers, and replaced the rear with 6.5 speakers.
Nav head unit to aftermarket double din, Metra part #
Use metra installation kit and it worked just fine
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
Used the metra installation kit and it worked just fine.
Nav head unit to aftermarket double din, Metra part #
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.
7 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 · 1 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My system is the double din nav with CD player below. 6 speaker system. It's a non Bose. I may tackle this install myself. What metra harness is used to install? Is it the 70-1787 or the 70-1784?
Also, will the factory amp work with the aftermarket head unit? I've read different post that states that it will and that it won't. Am I looking to buy a new amp now as well? Thanks guys.
If I remember right, you have the PCM1 analog (i.e. non-Most) based system, correct?
If you're choosing between these two wire harnesses, the 70-1787 is the one to purchase because your amp needs the pre-amp signals from the HU via RCA outputs. Remember, in Porsche vehicles, the amp powers *all* speakers not just the subs like in most other setups. That's still okay. You can wire up the system as is, but keep in mind, this harness does not support sub channel. Basically, you'll need a HU with front and rear RCA pre-amp outputs. (they're rare - most aftermarket HU only provide one pair of outputs) If you want to feed a sub-channel, you'll need to run that separately.
Thank you b3freak!! Not sure of the exact system I have but Def not a bose. The head unit has separate USB outputs 2 and a sub, I think.
I knew you'd have an answer as you upgraded your head unit too.
Did you also have to buy the antenna adapter?
Thanks again.
I converted it to the U.S. system antenna. I didn't use an adapter.
Just make sure you're HU supports front and rear pre-amps... and sub channel pre-amp output would be a bonus if your car has the door subs. Your car (although analog), can still be the "HIFI" system which is a 10 speaker - 6 channel setup.
Yes it comes with front, rear and subwoofer. Though my system doesn't have a subwoofer. I suppose it leaves room for upgrade. I purchased new speakers for door and rear. Not sure the amount of speakers behind grills. Just that there is dash, door and rear speakers.
Had the unit installed. Replaced the head unit by a local shop along with rear camera. Used the metra installation kit and it worked just fine. Also had them take out the nav cd drive and install the pocket replacement that comes with the metra kit.
Next will be a new amplifier as I installed new 4" dash, 5.25 door speakers, and replaced the rear with 6.5 speakers. You should note that the door speakers are 2 ohm while all others are 4 ohm. (this is a non bose system)
This is a source reference. Confirm exact model applicability in the original material.
