E39 aftermarket xtrons unit no sound

[bimmer vibe]

I know this has probably been beat to death but after hours of searching i cannot find the pinout for my cd53 radio connector, installed aftermarket head unit with proper adaptor but there is no sound. I have the flat 16 pin connector.

Pin 1-none
Pin 2-blue/red
Pin 3-yellow/red
Pin 4-none
Pin 5-none
Pin 6-brown/orange
Pin 7-brown/orange
Pin 8-none
Pin 9-white with yellow spots
Pin 10-white/brown
Pin 11-none
Pin 12-brown
Pin 13-white
Pin 14-white/red
Pin 15-red/green
Pin 16-purple/white

All the pinouts ive seen for this style connector have pins 1-8 filled with speaker wires so im a little confused as to why mine is different. Everything else works on the unit probably because the power and ground wires are still in their normal spots and so is the can bus wire. Radio is cd53 and dsp equipped.

[NOmoreBLING]

I am no expert, but I've seen people buying an android radio for their DSP equiped cars and having issues. Usually DSP cars need additional cable that is sold separately.