Damo - Good timing!
I'd like to sort it out - photos / description will help me avoid destroying the interior !
I'll test drive your instructions if you like.
Shame about not working with the MDI. I was looking at the RNS500, but the cost puts me off. Considering the top end android based double din units, once my finances recover and I've sorted out the more important tasks, like replacing the Landsail ditchfinders.
Cheers
Edd