I have just bought a Ls400 mk4. I want to install a mobile car kit. I have found the socket/aerial plug in the RH of boot and a spare plug inbetween front seats. Does anyone have data for these? Where does the aerial lead in the boot go to? Is there a built in aerial or does the lead terminate somewhere like the rear headlining? Any help appreciated.

Where is the spare plug in betweeen the seats? I think you can attach an aerial to the connection in the right box in the boot, the connection is a phone aerial connection.