Well, thanks for that info, but the M-Bus seems to be an 8-pin round style connector, while the one i've got is a 10 pin rectangular DIN connector, with 9 wires attached. I've pulled my 6 Disc in dash out, and it is made by Pioneer, model # CDX-MG6036, but the only sites that have this in the text anywhere are crazy russian service manual sites that all want $10 for it. I might want to get it working, but not enough to give my card # to some unknown russian site.

BTW, your car looks pretty nice, just wondering if you get any 'flickering' of your headlights, etc. when your subs hit. If i'm to stick with my stock head unit, i'll need to grab some line drivers for the amp, is that the best way to do it?