does any one have pics or info on the stock amp wiring layout of the E70??

I have the stock sound system w/12 speakers.

i need to connect a 2nd amp and need to identify each of the stock amp wires... (which is speaker left/right, front/back, remote amp turn-on, etc etc)

if you've done similar work can you help me identify these wires??

i looked on the main xoutpost.com page and found tons of info but for older models...

don't think i can use that info for my installation...

any help will be greatly appreciated!!!

__________________
2012 X5 50i M-Sport
2014 X3 35i M-Sport