Hey all, first post, just looking for a bit of assistance with installation of an aftermarket radio into my C160. I'm installing a Sony MEX-BT3700U, more info here - https://docs.sony.com/release/MEXBT3700U_install_US_ES.pdf Does anyone have any wiring diagrams for the car? I can remove the panel no problem, but need to know which connections the cables in the car correlate to, and can't find much online... Also with regard to the steering wheel controls, does anyone know if I'll need an adaptor? I'm assuming they connect to the bus control? Or will they not work with this head unit? Sorry for all the questions and thanks for any help!!