I'm still trying to find out about the stock BMW setup before I start ripping into it and trying to add amps etc. My X5 is UK spec with 6 Speakers and Nav, but NO amp and I have not been able to find any previous reference to the information I'm after, so could REALLY do with some help.

- Where is the Radio tuner module?
Dash, rear corner by the DVD/CD rack?

- Where does the wiring for the speakers run?
As I have no amp, does it run through that rear corner so an amp can be easily installed as an option, or does it run direct from the head unit to the speakers? I hope it's the former.

I'm hoping someone can help me here.