6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
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YOUR RESEARCHSeeking CDR 23/BOSE experts...
Leading reported evidence
Install aftermarket head unit
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
PO removed the head unit and amp and installed an aftermarket head unit.
Leading evidence: 'Install aftermarket head unit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'probably the wires' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install aftermarket head unit' (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
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Performed · outcome unconfirmed · Original poster
The aftermarket stereo was installed by tapping into the wires upstream of the plug at the head unit, then they ran a harness out to the amp and tapped the speaker wires coming off the amp plug.
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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Performed · outcome unconfirmed · Original poster
Since I am not willing to put money into replacing stock amp or head unit (as neither are particularly good and the more I research the more reliability issues I run into with them), I guess I'll likely be stuck going back to a aftermarket head unit.
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
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Suspected cause
If so, the problem is probably the wires from the amp to the speakers.
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
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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.
Suspected cause
If so, the problem is probably the wires from the amp to the speakers.
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.
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Performed · outcome unconfirmed · Original poster
The aftermarket stereo was installed by tapping into the wires upstream of the plug at the head unit, then they ran a harness out to the amp and tapped the speaker wires coming off the amp plug.
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
Since I am not willing to put money into replacing stock amp or head unit (as neither are particularly good and the more I research the more reliability issues I run into with them), I guess I'll likely be stuck going back to a aftermarket head unit.
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
I definitely have no idea how to test the output from the head unit, as my understanding is that this is all through the MOST (fibre optic) cable, so have to assume this is working or an error message would appear on screen.
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6 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.
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Generation: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
First things first, 2003 C2 Cabriolet, with BOSE factory.
PO removed the head unit and amp and installed an aftermarket head unit. I removed this aftermarket unit and am attempting to reinstall the factory kit. After much digging and discovering, I removed all the extra wiring the installers ran and think I have all the factory harness back in order.
Plugged everything in and powered up. Head unit powers up, no faults or issues in the display. Radio channels tune, CD player (no CD changer) sounds like it is changing channels and tracks fine....but there is NO SOUND.
All fuses appear to be in order and pass continuity test. I'm assuming since the head unit display doesn't show any issues, that it is "likely" ok? There is power to the amp, but I'm thinking maybe it is the problem? Is there a way to test a BOSE amp?
Any suggestions welcome and appreciated.
This may seem like a stupid question. Main difference between cdr 220 and the 23 is that the 23 uses a fiber optic output. Are you sure your car came with the 23 and not the 220?
Were all 2003+ BOSE systems MOST systems? I know my 2002 Bose is not, but I thought all 2003+ were.
But if the PO went to aftermarket, there's a good chance speaker wires were rewired/removed.
Have you tried hooking up a speaker to the amp to see if you get sound? I'd work my way from the head unit out.
Yes, it seems that 2003 was the year of MOST. Both my amp and head unit have the fibre optic connections and the cable is in the stock wiring harness and connects up to both units fine, so I'm pretty confident this was a stock installation.
The aftermarket stereo was installed by tapping into the wires upstream of the plug at the head unit, then they ran a harness out to the amp and tapped the speaker wires coming off the amp plug. I know the aftermarket one worked, so know the speaker wires are in tact coming out of the amp.
Being very non-electronic, I don't understand how to test the output (or if these is any) from the amp. I definitely have no idea how to test the output from the head unit, as my understanding is that this is all through the MOST (fibre optic) cable, so have to assume this is working or an error message would appear on screen.
Hence my logic (and I may stand to be corrected) is that the next step would be to test to see if the amp is working, as it seems to be the bottle neck. Trouble is how do I test that?
You should be able to wire a speaker directly to the amp outputs just to see if you are getting sound from that end of the system. If so, the problem is probably the wires from the amp to the speakers. If not, then the signal isn't getting to the amp.
As everything was working off the aftermarket head unit before and it was tapped directly into he speaker outputs from the amp, I am pretty confident the wires from amp to the speakers are all fine. All indications point to either the output to amp or amp itself. Since I am not willing to put money into replacing stock amp or head unit (as neither are particularly good and the more I research the more reliability issues I run into with them), I guess I'll likely be stuck going back to a aftermarket head unit. I just thought putting them back in would be a nice fix since I had them anyway....and gives me a winter project
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