hi line camera and digital upgrade

[cowman1960]

Hi all, i know this is the bmw forum and i have a 2004 range rover, but thy use the same tv module and screen sat nav etc, so my question is this.
I wish to put a rear view camera and upgrade the tv,(lost analogue signal) to a digital tuner.
do people have any recommendation.i kind of figured i have to buy a aux lead in to plum into the tv tuner in the boot of the car, and then use the aux station on the tv.
many thanks