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Thread: Radio Codes: Like Puzzles?

  1. #1
    Join Date
    Dec 2005
    Jackson, MO

    Default Radio Codes: Like Puzzles?

    I've only had this car for a month, and I reset the radio trying to get it to control the CD changer in the trunk. Now its asking for the security code. The radio is the KE83zbm cassette player but the sticker with the serial number is gone. I called BMW and they were able retrieve the code from the VIN number, but I don't think this is the factory radio (the harness is pretty hacked up) and the code hasn't worked. I pulled the cover off to see if the serial number might be inside somewhere, and found these numbers.


    I'm assuming that is the model number. There were, however, five other numbers (all lower than 6) handwritten in red and blue ink. Coincidence? Here are the numbers in their original color and configuration.

    . 1
    . 3
    . 6

    So here is a list of possible answers I have started:



    Now the last two are probably too simple, unless the colors are there simply to throw us off, but that may be over-thinking things a bit. The trick would have to be easy enough to remember after years of not thinking about it, so its probably not anything too complicated. I can only try three at a time, then have to wait an hour, but at least this narrows it down from 7776 possibilities to 120, and the arrangement above should bring that down to less than 20. Anyone have any insights? Or maybe some other way to retrieve the serial number? Thanks.
    Last edited by AWDSM; 01-12-2006 at 06:05 PM.

  2. #2
    Join Date
    Jan 2004
    Benneton (United Colors of)


    there's a good probability that, either on a tag or written in permanent marker on the inside of your tool kit, the radio code for the original car's radio is present. check there for a 5 digit code for $hits and giggles first. i didn't think it was the case with my car until one day, when putting an item back into the kit, i saw something in marker written in the case and said to myself : how neat! this 5 digit number must have some significance for it to be both the radio code and written in the tool box for some reason
    "..Torchinski v. Peterson that it is legal to carry a concealed weapon, so long the weapon is totally slick like a huge ass machine gun that you carry under a trench coat, like in the Matrix."

  3. #3
    Join Date
    Dec 2003
    Eastern Tennessee USi


    good at the lottery? Looks like 1 of 500,000 posibilities to me...lol
    95 E34 530I V2.37
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
    Join Date
    Dec 2005
    Jackson, MO


    Even if you have no idea what the code might be, that still only leaves a 5 digit number in which all of the numbers have to be 1-6. That gives us;

    6*6*6*6*6=7776 possibilities

    Now assuming that those numbers I found are the five numbers in the code, that narrows it down, since you only use each number once;

    5*4*3*2*1=120 possibilities

    And since '1' is used twice, I guess that number can be cut in half to 60? I'm not sure how that works. (edit: 5!/2!=60 possibilities )

    Now also assuming the numbers were arranged in some way that the code could be figured out from them, that would hypothetically limit the possibilities to 15 or so. I've tried the first two with no luck, I guess while I'm waiting for the next hour to pass I can search around in the trunk.
    Last edited by AWDSM; 01-12-2006 at 06:37 PM.

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