13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNewly developed speaker whine
Leading reported evidence
Install by po
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
It has a powerful Pioneer nav/sound system installed by PO.
Leading evidence: 'Install by po' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install by po' (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.
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.
13 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Dug up the maintenance records on my car, found the invoice from the AM stereo installer, called and visited him and he fixed the problem in about 15 minutes at no charge.
Need some help. I've researched threads on this but I have a specific situation I need to address. I've had my 996 for about 6 months. It has a powerful Pioneer nav/sound system installed by PO. 3 weeks ago, it developed an intermitant whine through the speakers, whether the unit is on or off. What I believe is the OEM amplifier is mounted to the firewall in the trunk. On inspection, I noticed that the wiring harness is not plugged into this unit and the unit, a large black finned item, was pretty much loose. I removed this unit. The stereo plays without this item in the car. Is it possible that this unit should remain in the car with the harness re-attached to eliminate what may be a ground fault? Maybe the harness worked itself loose and this caused the whine to start. I hesitate to plug it in as I'm not a machanical or electronic genius ( you were starting to guess that by now ) and don't want to blow up or short out my new Porsche. Anyone out there who's installed their own system, what happens with the OEM amp?
You may be completely looking in the wrong spot. This is also an early warning of your altinator going bad. Are you also blowing bulbs recently?
But also could be bad install or improper ground. Take it back to the installer.
Speakers being grounded with the radio power line could be the problem. If thats the case then grounding at the speaker and body attachment location would help.
Hey, I located the problem by accident. I had my stereo on and went over a railroad tracks. Boom...the driver's side door speaker kicked on and the whining stopped. Next step is to find out where the loose connection actually is. The door, the amp...?
If the amp in the front was still in and not wired up, trace the wiring back from there. It will be tapped into at some point, probably in front or to right of battery. Right there is likely to be ground zero. I shudder to think what you will find based on your two posts. Pictures when you do? It will be an easy fix if it's a hack job at that junction point.
Did a crazy thing. Dug up the maintenance records on my car, found the invoice from the AM stereo installer, called and visited him and he fixed the problem in about 15 minutes at no charge. Why don't I do things like this more often instead of contemplating self-diagnosis and repair and seeking help on-line from a bunch of DIY addicts. Live and learn.
