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Removed CDR220, now horn honks once when I lock doors.

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YOUR RESEARCHRemoved CDR220, now horn honks once when I lock doors.

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Replace unit

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I replaced my unit with an Alpine and had the same issue.

Removed CDR220, now horn honks once when I lock doors.
Frequently discussed work

Check schematics too

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Suggestion · Original poster

Going to check the schematics too.

Removed CDR220, now horn honks once when I lock doors.
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Leading evidence: 'Replace unit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check schematics too' (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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Check schematics too

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Suggestion · Original poster

Going to check the schematics too.

Removed CDR220, now horn honks once when I lock doors.

Run risk of the alarm randomly going off

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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.

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Suggestion

If you don't tape it up you run the risk of the alarm randomly going off.

Removed CDR220, now horn honks once when I lock doors.
Frequently discussed actions (3)

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Check schematics too

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Suggestion · Original poster

Going to check the schematics too.

Removed CDR220, now horn honks once when I lock doors.

Replace unit

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
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Performed · outcome unconfirmed

I replaced my unit with an Alpine and had the same issue.

Removed CDR220, now horn honks once when I lock doors.

Run risk of the alarm randomly going off

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

If you don't tape it up you run the risk of the alarm randomly going off.

Removed CDR220, now horn honks once when I lock doors.
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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.

23 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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Generation: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

As the topic states, I just removed the CDR220 to put in an Pioneer AVIC nav system I had. Everything is working perfectly as far as the AVIC is concerned, however I now get honked at once when I lock the doors with the key remote. I'm guessing it has something to do with the CDR220 being removed, does anyone know if there is something simple like a wire that needs to be jumped on the CDR220 power harness? Thanks in advance!

POST 2Original post

This was sent to me from Loren on Renntech.org: "Look for a Brown/Blue wire from the original radio connector and remove the pin and tape it (or cut and tape the wire)". I replaced my unit with an Alpine and had the same issue.

POST 4 / ORIGINAL POSTEROriginal post

Sorry if this is a silly question, but I'm not fully understanding. The 2 connectors (cd changer had been removed already), one is the speakers (yellow) and the other is the I believe 8 (10?) pin wide connector (blue?). Off hand can you recall if its off the speaker connector or the power connector? If I'm understanding correctly, it sounds as though I need to make sure the Brown/Blue wire is not connected to anything, is that the goal?

POST 5Original post

There is a little single brown/blue wire all by itself that is normally connected to the stereo frame on the side. It is all by itself on the left (drivers side) and not apart of any of the connectors that go into the back of the CDR220. And yes, you need to make sure that wire is not grounded on the stereo frame or anywhere else for that matter, just hanging out by itself with some electrical tape around the connector.

POST 6 / ORIGINAL POSTEROriginal post

Thanks, I'll take a look around, I didn't notice anything like that during removal, but it wasn't ideal lighting when I took it out. Thanks for everyones help!

POST 7Original post

IIRC on later cars this wire might be in the harness in the stereo. IF you don't see it by itself, look for that color combination in the wire harness.

POST 8 / ORIGINAL POSTEROriginal post

Oh ok, I'll take a look, mine is a 2001, so I'm not sure if that qualifies as "later" cars or not. Going to check the schematics too. Edit: Checked 99/00 schematics and it shows exactly as you describe above. Going to try and see if 01 schematics are available...

POST 9Original post

I have the same issue! So, if I pull the stereo out, there should be a brown/blue wire connected where? Inside the frame, or between the inner dash and the outside of the frame? Anyone have a photo - I need visual assistance.

POST 10Original post

This brown/blue wire is either by itself connected to the frame on the left side or is inside one of the connectors in the rear of the unit. Brown/Blue needs to be removed and taped.

POST 11 / ORIGINAL POSTEROriginal post

Curious, does anyone know if this hampers the alarm in any functionality or is it just an annoyance? I ask because I'm finding that I'm walking away from the car and can't hear the door locks sometimes, and the horn honking at me once is a good (albeit annoying) reminder that I've actually activated the locks.

POST 12Original post

I didn't tape my wire because I like to hear the horn honk. Let's me know that it is locked.

POST 13Original post

The alarm still functions, yes. There are other ways to get a beep though... You can press the lock button twice, and it will auto lock the doors and honk, but disable occupant motion detection. If you have a cab search for SmartTop and RemoteTop. You can also leave the oddments tray sensor open.

POST 14Original post

Quotes source post: 8949684

It's a coupe, but I still like to have the motion activated. I'm just too lazy to pull the radio out and tape the wire.

POST 15 / ORIGINAL POSTEROriginal post

Mines a cab...Im searching up for SmartTop now!

POST 16Original post

Quotes source post: 8949586

Not sure if it's better to confirm the car is locked by hearing the horn, or, not having the horn draw attention to the fact that there is a Porsche in the parking lot!

POST 19 / ORIGINAL POSTEROriginal post

hehe, I didn't think my thread would still be ongoing. I can't see any valid reason why anyone would steal THAT thing...

POST 20Original post

open up the oddments tray wire eh?? I continually struggle with the question of whether my car is locked or not. I might just try this and would consider putting a switch in line so I can turn the functionality on and off.

POST 21 / ORIGINAL POSTEROriginal post

In my previous cars I could always hear the locking mechanism activate so I could tell without looking back whether it locked. On the 996, I can't hear it at all so the horn honk is actually working out in my favour, its staying this way (at least for now).

POST 22Original post

SmartTop? What is that? Paulicat, i have an 01 cab too and going to put an AVH- . What did you find out?

POST 23Original post

If you don't tape it up you run the risk of the alarm randomly going off. Mine did that constantly until I taped up the wire.

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