Thanks.
Apologies for getting the connections wrong - it was just from a quick look.
RAVE is, I think, Rover Aftersales Viewing Environment, or, more simply, the Rover/MG Manual on a CD in a pdf format. You can get a copy from Rimmers:
https://rimmerbros.com/Item--i-ZAA000400
Am I correct in that the Highline is/was the original fitment? If so then I'd be very upset if it didn't work
.
I think more detail would be helpful.
What is the model number?
What happens when you switch the unit on? Do you get a generic opening screen?
Does it have selections for "Radio" etc. etc. that need to be selected?
What have you already tried?
Assuming the unit is powering up but there is no audio I'm wondering if the unit isn't detecting anything to "play" OR it's not sending anything to amplifier (is that powering up?) and/or the speakers.
Andy.