Quote:
Originally Posted by Jordo
I have non DSP and no sub. But I did have a factory amp. It died so I replaced it witha aftermarket amp.
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every bmw has a factory amp from what i know. dsp and non-dsp.
check right next to the battery, under the plastic cover (which you should know is under the spare wheel). European non-dsp cars have the BM54 amp fixed there.