I am upgrading the HiFi Professional DSP (677) audio system in my 2012 e89 and want to replace the DSP amplifier. I've ordered a mObridgepreamp lifier to decode the optical signal to analog, and will feed the signal into an 8 channel amplifier and a mono subwoofer amplifier. My problem is identifying the wires plugged into the DSP amplifier. Does anyone have a color-coded diagram of the DSP amplifier wiring they are willing to share?