Audi a3 8l speaker cables massacre!! (Help)

[8lgang96]

Im losing it, i bought a oem Audi head unit because it doesnt have a stock one right now! And when i remove that piece of crap headunit, my eyes died, what i need help with is what cable goes where which one is + and - . This car got oem bose amp in the rear and i want it all to work, what i need also is like a diagram or something to work on, my goal is to make it a perfect orginal car for my mom so any help needed please.

 

[MPH]

Im losing it, i bought a oem Audi head unit because it doesnt have a stock one right now! And when i remove that piece of crap headunit, my eyes died, what i need help with is what cable goes where which one is + and - . This car got oem bose amp in the rear and i want it all to work, what i need also is like a diagram or something to work on, my goal is to make it a perfect orginal car for my mom so any help needed please.

https://www.audi-sport.net/xf/resources/44/ Your answers are here any problems get back to me kind regards @MPH