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CDR 23 radio question

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6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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Discussion summary

YOUR RESEARCHCDR 23 radio question

Leading reported evidence

Repair damage and this morning connected power

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
I've since repaired the damage and this morning connected power to the radio using a bench supply (the pin-out is identical to the CDR 210/220, no problem there).
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CDR 23 radio question

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Leading evidence: 'Repair damage and this morning connected power' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair damage and this morning connected power' (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.

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1 matching discussions · 6 captured posts examined · 0 partial discussions

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Replace cdr 220 in a pre-2003 car

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster
Can the CDR 23 radio be used to replace a CDR 220 in a pre-2003 car?
Original post Read captured discussion
CDR 23 radio question

Replace failed unit

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Unfortunately, the one I bought was damaged in shipment (the coaxial connector for the antenna was broken) and my friend opted to replace his failed unit with a new radio.
Original post Read captured discussion
CDR 23 radio question

Use bench supply (the pin-out is identical

Suggestion or failed attempt

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've since repaired the damage and this morning connected power to the radio using a bench supply (the pin-out is identical to the CDR 210/220, no problem there).
Original post Read captured discussion
CDR 23 radio question

Frequently discussed actions (4)

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

Repair damage and this morning connected power

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've since repaired the damage and this morning connected power to the radio using a bench supply (the pin-out is identical to the CDR 210/220, no problem there).
Original post Read captured discussion
CDR 23 radio question

Replace cdr 220 in a pre-2003 car

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
Can the CDR 23 radio be used to replace a CDR 220 in a pre-2003 car?
Original post Read captured discussion
CDR 23 radio question

Replace failed unit

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
Unfortunately, the one I bought was damaged in shipment (the coaxial connector for the antenna was broken) and my friend opted to replace his failed unit with a new radio.
Original post Read captured discussion
CDR 23 radio question

Use bench supply (the pin-out is identical

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've since repaired the damage and this morning connected power to the radio using a bench supply (the pin-out is identical to the CDR 210/220, no problem there).
Original post Read captured discussion
CDR 23 radio question

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.

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.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Can the CDR 23 radio be used to replace a CDR 220 in a pre-2003 car? It appears to have the same electrical connections for power, speakers, and CD controller on the back, and to be DIN sized. Has anyone on this list tried a "retrofit"? THANKS for any help. Gary Knox

POST 2Original post

CDR 23 is a MOST radio for the MY03 and newer cars. Rumor has it that some very early versions of this radio were able to be wired into old cars.

POST 3Original post

I have a CDR 23 that I bought on Ebay for a friend. Unfortunately, the one I bought was damaged in shipment (the coaxial connector for the antenna was broken) and my friend opted to replace his failed unit with a new radio. I've since repaired the damage and this morning connected power to the radio using a bench supply (the pin-out is identical to the CDR 210/220, no problem there). However, what I see when the radio is powered on is "PORSCHE" on the display for a few seconds, followed by "PROTECT". I don't know if this is a code issue, or the radio going into a protected mode because it doesn't find anything on the MOST interface (the optical interface glows red, so it appears to be active). If there is a way to enter a code into this radio, I'll try that and report back. But if this is something that needs to come from the MOST, I don't think the radio is usable as a replacement for the non-MOST units.

POST 4Original post

Come to think of it... I don't think you can enter the code in any way. It expects to get the code from the DME over the MOST bus.

POST 5Original post

Quotes source post: 5058638

Yes, this seems to be what is going on.

POST 6Original post

Programmed theft protection. Audi MOST Infotainment devices, by design, allow for a certain # of "attempts" before the device is permanently locked.....designed into the S/W.

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