[V8] Radio code remembered by car?

[Dave Saad]

It is certainly possible that "the car remembers" the radio code. Or more likely, the radio is coded to a certain VIN.  I am going to change a antilock controller in a 2007 Ford Freestyle next week.
This is going to require a trip to the dealer so he can recode the antilock controller to match the vehicle vin. It would stand to reason that other modules - like a radio - would work the same way. It is actually a better theft deterrent than the old way - but you have to pay the dealer $85 to make it work.  So far, I have not found a scan tool I can reasonably buy that can do this recoding.


On Jun 9, 2011, at 7:00 PM, Ed Kellock wrote:

> In the past, I have been able to get a couple of codes over the phone
> through Stammler Audi in Boulder, CO.  I needed the serial number from the
> radio and the VIN from the car.
> 
> Ed
> 
> 
> 
> -----Original Message-----
> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
> Tony and Lillie
> Sent: Thursday, June 09, 2011 6:16 PM
> To: gbmarc at cox.net; v8 at audifans.com
> Cc: v8-request at audifans.com
> Subject: Re: [V8] Radio code remembered by car?
> 
> 
> Only in 2001 and newer ones are the codes remembered. On that car, it will 
> loose it's memory. Which is better than me, I've lost my mind!!
> 
> If you pull the radio out, you may find the sticker on it with the code. If 
> not, you will have to write down the # on the radio and take it to the local
> 
> dealer for the code.
> 
> Tony
> ----- Original Message ----- 
> Subject: [V8] Radio code remembered by car?
> 
> 
>> This is not strictly V8 but I thought some of you might know the answer.
>> I just bought a '97   A4  with a Delta CC radio and the previous owner 
>> couldn't find the radio code.
>> The radio is in some weird state where it is unresponsive to any 
>> button
>> pushing but occassionaly sticks on one FM station or other.  I wanted to 
>> pull the fuse and see if it reset itself, but I am worried that it will go
> 
>> into SAFE mode.
>> Now here's the technical tidbit that surprised me:
>>  I have see a forum post where it was claimed that as long as a radio is 
>> in the original car it was first installed in, then even if you disconnect
> 
>> the power, that when power is restored, the radio communicates with the 
>> car's ECU over a CANBUS data link and if everything checks out, then no 
>> code is needed and the radio operates as normal.
>> Can anyone confirm this?
>> 
>> mark
> 
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