911uk

new stereo creates alarm problems

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4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHnew stereo creates alarm problems

Leading reported evidence

Install original stereo and it's fine

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
they have re-fitted the original stereo and it's fine.
Original post Read captured discussion
new stereo creates alarm problems

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Leading evidence: 'Install original stereo and it's fine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install original stereo and it's 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.

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1 matching discussions · 4 captured posts examined · 0 partial discussions

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Set giving one bleep of the horn

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
just had a new stereo fitted professionally but it has triggered a fault in the alarm system, that is it won't set giving one bleep of the horn to indicate a broken contact somewhere (as if a door wasn't shut).
Original post Read captured discussion
new stereo creates alarm problems

Frequently discussed actions (2)

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

Install original stereo and it's fine

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
they have re-fitted the original stereo and it's fine.
Original post Read captured discussion
new stereo creates alarm problems

Set giving one bleep of the horn

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
just had a new stereo fitted professionally but it has triggered a fault in the alarm system, that is it won't set giving one bleep of the horn to indicate a broken contact somewhere (as if a door wasn't shut).
Original post Read captured discussion
new stereo creates alarm problems

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.

4 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.

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

Generation: 20261026T063944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

just had a new stereo fitted professionally but it has triggered a fault in the alarm system, that is it won't set giving one bleep of the horn to indicate a broken contact somewhere (as if a door wasn't shut). the fitter spoke to Porsche who had some ideas regarding an earthing issue but all to no avail. they have re-fitted the original stereo and it's fine. any ideas anyone??

POST 2Original post

there is cable from the old stereo loom that requires earthing to the chassis/ sleeve of the new stereo to stop the alarm 'beep' when arming. not sure which one but I'm sure someone will be along shortly to advise.

POST 3Original post

Hi there, The wire is on the left hand side of the chassis for the stereo as you look at it, think it is brown if I remember correctly . Its best to disconnect and tape up , to prevent future problems,. did mine in about five minutes when fitting a Becker Grand Prix . Hope this helps :wink:

POST 4Original post

It is brown with a blue tracer, and as touring says, it needs to be isolated, not grounded.

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