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Replace PCM1 - what next?

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YOUR RESEARCHReplace PCM1 - what next?

Leading reported evidence

Replace by a pioneer touch screen

Performed · outcome unconfirmed

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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed

The 996 TT I am getting has had the PCM removed in 2014 and replaced by a Pioneer touch screen with Bluetooth phone and Nav etc..

Replace PCM1 - what next?
Frequently discussed work

Check build codes in your handbook)

No successful repair reported for this finding.

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Suggestion

It will have Bose emblems on the speaker grills in the front (or check your build codes in your handbook).

Replace PCM1 - what next?
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Leading evidence: 'Replace by a pioneer touch screen' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check build codes in your handbook)' (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.

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Replace pcm-1

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

I recently replaced my PCM-1 with an Alpine INE-W990BT from

Replace PCM1 - what next?

Check build codes in your handbook)

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

It will have Bose emblems on the speaker grills in the front (or check your build codes in your handbook).

Replace PCM1 - what next?

Check get them

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

When your checking get them to make sure the amp is connected and running as the head unit has an amp built in so you will get sound but not loud and no base treble etc as the base speakers from what I remember runs through the amp .

Replace PCM1 - what next?

Recommend good audio place

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

Can anyone recommend a good Audio place that could help.

Replace PCM1 - what next?
Frequently discussed actions (8)

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

Check build codes in your handbook)

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

It will have Bose emblems on the speaker grills in the front (or check your build codes in your handbook).

Replace PCM1 - what next?

Check get them

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

When your checking get them to make sure the amp is connected and running as the head unit has an amp built in so you will get sound but not loud and no base treble etc as the base speakers from what I remember runs through the amp .

Replace PCM1 - what next?

Recommend good audio place

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

Can anyone recommend a good Audio place that could help.

Replace PCM1 - what next?

Replace by a pioneer touch screen

No successful repair reported for this finding.

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

The 996 TT I am getting has had the PCM removed in 2014 and replaced by a Pioneer touch screen with Bluetooth phone and Nav etc..

Replace PCM1 - what next?

Replace pcm-1

No successful repair reported for this finding.

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

I recently replaced my PCM-1 with an Alpine INE-W990BT from

Replace PCM1 - what next?

Run from the head units amp

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

so you may only be getting mids and tweeters doing all the work and only running from the head units amp .

Replace PCM1 - what next?

Use hardness adapter rather than the active system - maybe

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 bought these from Design91.com1 to fit but used the hardness adapter rather than the active system - maybe that's where I went wrong :?

Replace PCM1 - what next?

Use more expensive one as

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

who make the lead(s) to ask them if I should be using the more expensive one as that has an "Active Plus" box and quotes "...of an aftermarket head unit into a vehicle with an OEM amplifier"

Replace PCM1 - what next?
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.

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

  • 911uk: 1 discussions

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

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

Outcome without a verified action link

Definitely NO change to existing Bose Amp/Speakers..want something to directly swap out the PCM1 unit for something smart / OEM looking

No unique explicit quoted action; no causal link assigned

Generation: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Chaps, The last time I looked into this, go to was a Pioneer Double Din. My requirements: iPhone integration - (i) full integration (ii) aux cable? (Any thing in between?) SatNav - not bothered Would like option to plug in a USB stick (possibly) Definitely NO change to existing Bose Amp/Speakers..want something to directly swap out the PCM1 unit for something smart / OEM looking Thanks

POST 2Original post

I recently replaced my PCM-1 with an Alpine INE-W990BT from these guys All works and looks great although I need to investigate if I have the correct lead as the sound (or the speakers) is not very deep I bought these from Design91.com1 to fit but used the hardness adapter rather than the active system - maybe that's where I went wrong :? Active System Adapter. Porsche 911 (996) / 986 Boxster (CT53-PO01) 1 £39.00 £39.00 Double Din Fascia Plate (Black). Porsche 911 (996) 1998-04 (CT23PO02) 1 £39.00 £39.00 Harness Factory Adapter To After Market Radio. Porsche 911 (996) / 986 Boxster (CT20PO02) 1 £5.00 £5.00

POST 3Original post

When your checking get them to make sure the amp is connected and running as the head unit has an amp built in so you will get sound but not loud and no base treble etc as the base speakers from what I remember runs through the amp . so you may only be getting mids and tweeters doing all the work and only running from the head units amp . :thumb:

POST 4Original post

Thanks Phil - that sounds exactly like my problem - sounded pretty average for a £500+ stereo system I was thinking! I have gone back to Connects2 who make the lead(s) to ask them if I should be using the more expensive one as that has an "Active Plus" box and quotes "...of an aftermarket head unit into a vehicle with an OEM amplifier" So might be the missing piece of the puzzle here - advice much appreciated :thumb: I will report back...

POST 5Original post

Thread resurrection The 996 TT I am getting has had the PCM removed in 2014 and replaced by a Pioneer touch screen with Bluetooth phone and Nav etc.. Have these systems moved on much since 2014 so worth changing again, now that its 6 years old ? Can anyone recommend a good Audio place that could help. I live in Bexley which is near M25 J2 in London. Ta.

POST 6Original post

Latest ones have Apple Car Play, Waze etc which would be good if you like that sort of thing.

POST 7Original post

This will sound like a really dumb question (as most of mine are), but how does one determine whether they have a fibre optic Bose MOST system or a simple one? For reference mine is a '98C2 with a (dying) double din pcm1.0, navigation drive in dash, cd changer in frunk and what looks like an aftermarket kenwood amp mounted in there too. I'm no audiophile but would like some sort of radio and Bluetooth connectivity so am looking at one of the android units to put in but haven't the faintest idea where to start. I understand I'll need a wiring conversion loom to convert the Porsche wiring to fit a standard head unit but the correct one is based on whether I have a fibre optic system or not? I've read a few posts on the forum but feel I'm missing some basics...any help gratefully received.

POST 8Original post

The fibre optic system came in with the facelift cars, BOSE or not.

POST 9Original post

I have a facelift with PCM1 Bose and I'm 99% sure it isn't fiber optic. I was led to believe from reading another thread on here a while back that the fiber optic came in on the Bose on PCM 2...

POST 10Original post

Pretty sure if it has a cassette player, it's definitely not fibre optic

POST 11Original post

Not sure whether its of interest. But it looks like Porsche are going to release there own replacement PCM double din head unit with CarPlay etc for 996 models. as part of their classic range. I dread to think what the price might be however!!! (edit - Teile.com have it priced at €1,521!!) https://content.eu.porsche.com/prod...e=996&mo=&pr=CEDC8FD21252AE9BC12584B90052B538

POST 12Original post

Saw that - very expensive and already slightly dated in terms of tech - i.e. no WiFi Carplay and camera integration (dashcams / reversing cameras etc).

POST 13Original post

Glad I'm not the only one that's confused!! Mine is a '98 c2 and does have the cassette player in the pcm1 so based on the above would assume it's not fibre optic, therefore would this be the correct wiring harness adaptor: http://www.caraudiodirect.co.uk/con...ter-911-active-system-adapter-non-fibre-optic If so, next question - Bose. Does the Bose unit have it obviously written on there somewhere on the componentry? Where should I be looking? With the above harness can I just plug and play? Cheers all

POST 14Original post

That will convert your existing wiring and allow plug and plug (as long as your new head unit is the same - very likely it will). I have just used this adapter on my Bose non fibre system). How will you know if you have Bose? It will have Bose emblems on the speaker grills in the front (or check your build codes in your handbook).

POST 15Original post

To the OP who resurrected the thread, I took mine to Dynamic Sounds in Wandsworth, they were great and sorted everything on my C4S. They have done countless 911 upgrades and couldn't fault them from my experience. I went for a Pioneer SPH-DA230DAB which has Apple Car Play, touch screen and USB etc. It has that slightly 'older' look to it so it suits the overall interior of the car really well. Some units are so sleek and modern, they'd look out of place in and amongst the 996 dash IMO. Well worth calling them and once the lockdown ends, i'm sure they'd easily be able to supply and install for you etc.

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