How accessible is the backside of a radio. I've never cracked open my dash, but I'm having a new one installed this weekend (hopefully). The new unit has a lot of AV ins which I hope to make use of. In fact, it looks exactly like
this .
My question is: should I ask the guys to give me some extension cables leading out to the centre console/glovebox/under the seat, or will these cables all be readily accessible behind a panel somewhere?