You need the red (12V) wire, the grey with yellow stripe (or something - ground when door opened) a black wire (switched on with ignition) and a permanent ground, which should be brown. You probably won't have the black or brown, and this is all you'll need to put it in. For the ground simply drill a hole and a use a self tapper. Make sure it's not right through the roof, though!
The main light switches off about 10-15 secs after you close a door, or when you swith the ignition on, whichever is first. The little map lights will only come on with the ignition.
yeah, i have the red (permenant live) and grey(ground when doors open) up there, iv connected them the the connectors they fit, the live when ignition on i have taken from the cigar lighter and the ground i have taken from the electric sunroof. which pins do i have to wire these up to? i keep blowing fuses because i am unsure as to which way i am to wire it up!