Question about AudioBahn A3751 CD Player
The original code you got with the unit will always override one that you entered. As long as you have the product card (in the information that came with the unit) you should be all right. If you lost that card you can try resetting the unit, but I think the code is designed to still be in effect. Let me know, I can do somemore digging..... Do you still have the owners manual (google it and you can download it free)
Posted on Jan 16, 2010
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Mar 11, 2015 | Kenwood Car Audio & Video
Jun 05, 2011 | 1997 Acura TL Series
Many Kenwood radios are configured with the same security codes:
There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.
In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.
Finding the Kenwood Security Code
There are backdoor codes for each Kenwood car stereo, based upon the model and the serial numbers.
These backdoor codes are closely held secrets. Outfits like Car Audio Accessories UK will sell you the code for your radio for £20.
Sending your RadioBack to Kenwood
If all else fails, you can send your stereo back to Kenwood to have the security code reset.
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