3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDension 500 System Error: Amplifier, CD Changer not available
Leading reported evidence
Install dension 500 a couple months ago
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.
Dension 500 System Error: Amplifier, CD Changer not available
Read full discussion summary
Leading evidence: 'Install dension 500 a couple months ago' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'somehow caused by' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install dension 500 a couple months ago' (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.
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
A few weeks later, after the car had been sitting long enough for it to go into "sleep" mode, when I started it up and tried to use the sound system, I got an error that said "System Error: Amplifier, CD Changer not avaliable." Although the PCM seemed to be working, there was no sound an it had lost the interface to the Dension unit (which I simply swapped for the CD changer that was previously installed).
Dension 500 System Error: Amplifier, CD Changer not available
somehow caused by
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
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 suspect 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.
Suspected cause · Original poster
I have let the car sit long enough for it to "sleep" since then, and it seems like the issue is somehow caused by that.
Dension 500 System Error: Amplifier, CD Changer not available
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Replace order of device
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
There was some indication in the other thead that changing the order of device on the MOST ring might also prevent this.
Dension 500 System Error: Amplifier, CD Changer not available
Reset button
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
Hi, what about cycling the denison switch or getting a paper clip and hit the reset button on the Desion unit?
Dension 500 System Error: Amplifier, CD Changer not available
Replace cd changer
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
A few weeks later, after the car had been sitting long enough for it to go into "sleep" mode, when I started it up and tried to use the sound system, I got an error that said "System Error: Amplifier, CD Changer not avaliable." Although the PCM seemed to be working, there was no sound an it had lost the interface to the Dension unit (which I simply swapped for the CD changer that was previously installed).
Dension 500 System Error: Amplifier, CD Changer not available
Use sound system, i got an error
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
A few weeks later, after the car had been sitting long enough for it to go into "sleep" mode, when I started it up and tried to use the sound system, I got an error that said "System Error: Amplifier, CD Changer not avaliable." Although the PCM seemed to be working, there was no sound an it had lost the interface to the Dension unit (which I simply swapped for the CD changer that was previously installed).
Dension 500 System Error: Amplifier, CD Changer not available
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
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 · 1 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T065735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I installed the Dension 500 a couple months ago. A few weeks later, after the car had been sitting long enough for it to go into "sleep" mode, when I started it up and tried to use the sound system, I got an error that said "System Error: Amplifier, CD Changer not avaliable." Although the PCM seemed to be working, there was no sound an it had lost the interface to the Dension unit (which I simply swapped for the CD changer that was previously installed).
After searching this forum, I found an old thread in the Cayenne forum about a similar issue. Apparently, this error can occur when the information system tries to re-connect with MOST components but is not able to for some reason. One possible solution is to "re-boot" the info system and let it re-discover the componts. After some trial and error, I found that I could do this by pulling fuse #6 in row E (this is in a 2004 C4S w/PCM & Bose).
I have let the car sit long enough for it to "sleep" since then, and it seems like the issue is somehow caused by that. Pulling the fuse as indicated seems to be a work-around. Of course, the real solution would seem to be to never let the car sit long enough for it to "sleep."
There was some indication in the other thead that changing the order of device on the MOST ring might also prevent this. I never had this error with the CD changer, but have it now with the Dension unit. It's pretty easy to work around now that I now which fuse to pull.
No, that doesn't have any effect. Although it's pretty hard to tell exactly what is going on, the Dension unit appears to be functioning properly and the info center unit or MOST ring appears to be doing something that is not quite right.
Since posting the intial message, I did have this happen again, and this time the car had not been sitting long enough for the car to go to "sleep" mode.
This is a source reference. Confirm exact model applicability in the original material.
