Have a look at
http://www.toysinyourcar.com/acatalog/BMW.html as there is a fair amount of choice on how you can set it up. I've got the Stereo audio + advanced TV in motion leads
http://www.toysinyourcar.com/acatalo..._av_staud.html. The only 'complicated' bit is running the phono & switch lead down the length of the car but if you're reasonably adept, there is actually trunking down either side so it's just a simple bit of trim removal.
The wiring is child's play.....
The TV in motion is just plug & play and actually increases the normal controls you have of the TV, including channel switching on the steering wheel.
The Stereo Audio lead is plug & play
apart from the switched 12V. This is my post from when I fitted the bass box. I used the same switched feed for this.......
I found the Purple & white cable on multiway going into the Radio/TV module is 12V ignition controlled. On my car at least that's the box with the ariel leads going into it - closest to the back of the car on LHS as you stand looking into the boot. I tapped off it for 'remote' power supply for bass box amp. (high current power comes off big connection block on RHS of boot obviously...!)
I haven't driven anywhere with the Archos yet, but it works brilliantly in my car park! It fits rather well on the tray in front of the gear stick but if it proves to slidey aroundy I'll figure something better out.
Operation is easy. For just audio you just select the CD player as you would normally. The audio you then hear comes from the Archos instead. If you want video too, you select the AV i/p on the TV & then hold down the 'autoreverse' button for a few seconds. A quirk in the system then makes the TV change it's audio source. You end up with the TV pic & CD audio, (in this case the vid & audio from the Archos).
If anyone knows why/how this works I'd love to know!
I'm at work at the mo so I'll try & take pics at the weekend. It really is very simple though.
Cheers,
Barney.