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2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose

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

Discussion summary

YOUR RESEARCH2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose

Leading reported evidence

Install aftermarket (4-ohm) speakers

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
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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
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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 had the "hiFi" system in mine and the PO installed aftermarket (4-ohm) speakers on the factory 2-ohm head unit and amp.

2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose
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Leading evidence: 'Install aftermarket (4-ohm) speakers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install aftermarket (4-ohm) speakers' (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.

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1 matching discussions · 2 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Run larger ground wire

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

Also was careful to run a larger ground wire to isolate noise from the alternator.

2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose
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 aftermarket (4-ohm) speakers

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 had the "hiFi" system in mine and the PO installed aftermarket (4-ohm) speakers on the factory 2-ohm head unit and amp.

2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose

Run larger ground wire

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

Also was careful to run a larger ground wire to isolate noise from the alternator.

2002 c4s Static or fuzz noise on OEM or aftermarket radio with bose
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.

2 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Any audio heads out there? I have a static or some kind white noise fuzz coming from the speakers. I noticed it on my stock single din radio but not too much and was able to turn it off when I powered off the radio. It's only there when the radio is on with no volume. I have an aftermarket alpine ilsx-w650 double din just installed and now it's a bit louder and I can't turn the radio off so the noise is always there when the radio is muted. You can't hear it when there's some volume. Anyway to get rid of this? With a noise filter or ground loop? Or maybe I should get the add on amp offered for the alpine and bypass the stock bose amp?

POST 2Original post

I'm no expert but from my learning, it has to do with the 2-ohm Bose system trying to hand the 4-ohm output from your new unit. I had the "hiFi" system in mine and the PO installed aftermarket (4-ohm) speakers on the factory 2-ohm head unit and amp. I switched to a Sony head unit and two Alpine amps and eliminated everything from the factory system. Also was careful to run a larger ground wire to isolate noise from the alternator. Sounds much better now.

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