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Originally Posted by taibanl
Perhaps, I've never had one, but please comment on the attached (it specifically references changes between old and new HiFi amps, the newer lacking coding ability as opposed to the older).
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That's interesting to tell you the truth, considering that BMW stated in the HiFi OEM amp description that:
Quote:
Stereo/HiFi amplifier
HiFi amplifiers are amplifiers with active frequency gates. Active frequency gates achieve better acoustic results than passive frequency gates.
The HiFi amplifier does not have speed-dependent volume adjustment or speed-dependent equalising. The function of the HiFi amplifier is only to amplify the low-frequency output.
The HiFi amplifier is a non-diagnosable control unit.
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And there are no CAN wires shown in the schematics: