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PCCM+ Install Question

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

Discussion summary

YOUR RESEARCHPCCM+ Install Question

Leading reported evidence

Disconnect the fiber optic loop in the amp

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

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question
Read full discussion summary

Leading evidence: 'Disconnect the fiber optic loop in the amp' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect the fiber optic loop in the amp' (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.

Read captured replies

1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace volume

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

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question

Replace cdr23

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 · Original poster

I�m replacing my CDR23 with a PCCM+ and everything seems to be plugged in correctly, but I�m getting no sound.

PCCM+ Install Question

Set from can

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 · Original poster

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question

Use pin 17

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 · Original poster

EDIT: My amp is 996 545 265 00 and I saw that some people used pin 17 for the new ground, but there�s currently nothing there and I�m not sure if the ground is needed.

PCCM+ Install Question
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.

Disconnect the fiber optic loop in the amp

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 · Original poster

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question

Replace cdr23

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 · Original poster

I�m replacing my CDR23 with a PCCM+ and everything seems to be plugged in correctly, but I�m getting no sound.

PCCM+ Install Question

Replace volume

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 · Original poster

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question

Set from can

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 · Original poster

I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing.

PCCM+ Install Question

Use pin 17

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 · Original poster

EDIT: My amp is 996 545 265 00 and I saw that some people used pin 17 for the new ground, but there�s currently nothing there and I�m not sure if the ground is needed.

PCCM+ Install Question
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.

3 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: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All! I�ve been looking at all the PCCM+ threads and can�t figure out my problem, so please bear with me. I have a 2005 C4S with the Bose high end sound package. I�m replacing my CDR23 with a PCCM+ and everything seems to be plugged in correctly, but I�m getting no sound. I�ve tried the MOST box plugged in and disconnected, the fiber optic loop in the amp and disconnected, changed the volume setting from CAN to AMP and back, and still nothing. EDIT: My amp is 996 545 265 00 and I saw that some people used pin 17 for the new ground, but there�s currently nothing there and I�m not sure if the ground is needed. Can anyone suggest some other things I can try?

POST 2Original post

You need to ground per the manual... You open up the clip and add the grounding wire/pin. I have an 03 C4S with Bose (680) and everything was as described in the install manual. See here with part# for ordering and install (Post #140) https://rennlist.com/forums/996-forum/1329440-pccm-plus-woes-upgrades-10.html#post19397152 Photo from my install:

POST 3Original post

I just received my PCCM+ kit from Suncoast Porsche; they make you specify year and BOSE status when you order (mine is an '04 C4S w/Bose). The grounding wire was included in the kit they sent me as a separate part (996.642.587.00) which was quite helpful per @theJRUHL and others.

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