converted mine to digital TV, bit of an epic, through the VTR2 rca inputs on the tuner box in the boot, using a STRONG 12V digital box and an NTSC converter and tapping into the fatory aerials in the rear windows, note: these aerials have 12V amplifiers, small silver boxes, and only activated when in TV mode, not VTR mode, so they had to be given a 12V feed to get a good reception, worth it though. but would love to get the SATNAV working, keep me informed.