Ok cool.. Yeah if you can hear static that means I'll be able to too and that'll annoy me. I'll let you work on the audio option.
I know the pinouts for the speaker which would help anyone with external amp but still doesn't help with a seamless integration like muting audio when phone call comes in or voice control etc... I'll see if i can dig up a wiring diagram for the MS and see is there's a way to feed analog audio in - I'm thinking most likely via the fm radio module
Do you have the pinout for the external amp? I have a defective aftermarket amp I bought on the bench thats no longer sold. I haven't really gotten to trying to repair it yet but a pinout would be immensely helpful.