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No sound from radio

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

Discussion summary

YOUR RESEARCHNo sound from radio

Reported or suspected cause

amplifier (see my post

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.

Reported cause

The problem is the amplifier (see my post on renntech for full story).

No sound from radio
Frequently discussed work

Check fuse h6 (i believe) mine appeared

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

(2003 C4S) Check fuse H6 (I believe) Mine appeared to be good but replacing it fixed the problem.

No sound from radio
Read full discussion summary

Leading evidence: 'amplifier (see my post' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'amplifier (see my post' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check fuse h6 (i believe) mine appeared' (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 · 14 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace channels

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 checked to make sure mutes not on and changed channels from am/fm/cd but nothing seems to work.

No sound from radio

Replace unit at no cost

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

Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work.

No sound from radio

Run computer

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

Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work.

No sound from radio

Check fuse h6 (i believe) mine appeared

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

(2003 C4S) Check fuse H6 (I believe) Mine appeared to be good but replacing it fixed the problem.

No sound from radio
Frequently discussed actions (10)

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

Check fuse h6 (i believe) mine appeared

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

(2003 C4S) Check fuse H6 (I believe) Mine appeared to be good but replacing it fixed the problem.

No sound from radio

Check fuse mine looked fine so i took it

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

After checking the fuse mine looked fine so I took it to the dealer.

No sound from radio

Check fuses

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 can't remember if the fuse is on the same power supply as the head unit but have you checked fuses?

No sound from radio

Check power

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

You need a test light to check power to the amp.

No sound from radio

Combined work: Replace unit at no cost + Run computer

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt

I had this same issue with my car, which is also equipped with a factory 6 disc changer. Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work.

No sound from radio

Replace channels

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 checked to make sure mutes not on and changed channels from am/fm/cd but nothing seems to work.

No sound from radio

Replace fuse

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

They charged me $60 to diagnose and replace the fuse.

No sound from radio

Replace fuse even if it looks good

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

Try replacing the fuse even if it looks good.

No sound from radio

Replace unit at no cost

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

Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work.

No sound from radio

Run computer

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

Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work.

No sound from radio
Reported and suspected causes (1)

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

amplifier (see my post

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
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.

Reported cause

The problem is the amplifier (see my post on renntech for full story).

No sound from radio
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.

14 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

(2003 C4S) Check fuse H6 (I believe) Mine appeared to be good but replacing it fixed the problem.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T220748Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Has anyone experiened this before...I got into my car today and no sound is playing. The radio seems to be working fine, ie -- turns on and off volume will go up and down. I checked to make sure mutes not on and changed channels from am/fm/cd but nothing seems to work.

POST 2Original post

The HiFi uses an external amplifier in the trunk. I can't remember if the fuse is on the same power supply as the head unit but have you checked fuses? The HU also triggers the amp to come on, maybe it is not happening. You need a test light to check power to the amp. One wire should only be hot when the HU is turned "on" and vise versa, dead once the HU is turned "off". If the trigger wire is hot to the amp and the amp is receiving continuous power on another wire, the amp could be dead.

POST 3Original post

Quotes source post: 4611942

I had this same issue with my car, which is also equipped with a factory 6 disc changer. Dealer ran computer check and found a radio fault - replaced the unit at no cost, but it still didn't work. They then replaced the CD changer - also at no cost, and the system's been working fine since.

POST 4Original post

mine does that on occasion. I press and hold the CD button and it reboots the radio back to life. Sometimes locking the car and letting it sit for a 1/2 hour works too.

POST 5Original post

Happens here... do you have the bose high end option? Fix is to pull fused D8 and D9... resets amp, which is usually the problem, it will work after that. Ross

POST 6 / ORIGINAL POSTEROriginal post

Quotes source post: 4612204

Thanks guys, this ended up working for me--just letting it sit. My factory warranty is coming up in a month...wondering if it would be worth it to have them look at it.

POST 7Original post

I had this problem too. (2003 C4S) Check fuse H6 (I believe) Mine appeared to be good but replacing it fixed the problem. This fuse is also tied into a fuel inlet solenoid (or something) that would not allow me to put fuel into the car Replacing this fuse corrected both problems. After checking the fuse mine looked fine so I took it to the dealer. They charged me $60 to diagnose and replace the fuse. Try replacing the fuse even if it looks good. Let us know how it turnes out

POST 8Original post

Quotes source post: 4612683

Mine also did that (worked again after letting it sit - at first.) but eventually it stopped working and would not come on again. If you are under warranty have it checked.

POST 9Original post

Quotes source post: 4612874

Same here... its a ticking bomb. The problem is the amplifier (see my post on renntech for full story). Got a replacement off of ebay, put it in and works (although still exhibits same problem once and a while).

POST 10Original post

Quotes source post: 4612075

Hey Phil, on which of the two days you drove the car did you discover this problem?

POST 11Original post

Quotes source post: 4612867

I recall you telling us about that a while back! IIRC, I did this back then ===> But I won't do that today, instead I'll do this ===>

POST 13Original post

<Rant> Don't want to dis Porsche (Becker) but these stereos are cr@p! Been through three so far in the 986 - complete POS - they run so hot it's no wonder they always fail. </Rant>

POST 14Original post

Quotes source post: 4613758

+1, they must be lowest bidder!

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