There is an anti-theft switch on the rear radio mounting bracket. The factory radio has a ~2" rod sticking out the back of it that goes through a hole in the mounting bracket. The switch is behind this hole. Remove the 2-wire connector from the right hand side of this bracket and leave it removed. That might help.
No, the anti theft device is for the radio itself, usually a 4-5 digit code to be put back into the source unit once it has lost power and reset. the problem sounds like u have an issue with the BCM ( body contol module) i would ask BMW to use their scan tool to scan for codes and then to link the code to the problem. it could be something simple as your key fob may just have to be reprogramend. I have heard of that happening in the 3 series coupes and with those it was the lock actuator that was failing. If you do not have confidence with bmw then an auto elec should be able to problem solve for you. although i dare say a bmw dealership should be able to fix it quickly for you once you tell them what to do.
cheers
Hi
If you have wired the radio with the "Red" live and the "Ignition live" Yellow" together as in some cases you have to depanding on the radio make then it can upset the power to the alrm and central locking, take a look at the wiring or get back to me with the make of the car radio ?
The dealer is right about the switches though this is very common, it is nearly always the hood / bonet switch. it might look fine but they can jem up internally, have you greased them all up with wd40 ?
regards
Dan
I actually took the hoot switch off and checked it with a meter it works fine.
As to the wireing I did put the red and the yellow together but later seperated them because i didn't want the raido to run down the battery.
The make of the radio is a Kenwood. If you are familiar with the harness plug there are two plugs one with the plug that controls the speakers and amp and the small one at the bottom which was hooked to the stock radio but now is not connected to anything. Is that small plug supposed to be plugged into anything?
Hi
does the car have an electric aerial ? if so then that last plug may be for the aerial, this would normally go down when you press the fob. Get back to me if thats not the case.
Regards
Dan
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