Checked all ‘media’ fuses and reconnected the under seat amp.. still no change.. noticed that the BT unit in the load area behind panel is missing (lots of wires/plugs etc) but been advised this will not affect the satnav/settings screen…so at a bit of a loss what route to try next…‍
 
Checked all ‘media’ fuses and reconnected the under seat amp.. still no change.. noticed that the BT unit in the load area behind panel is missing (lots of wires/plugs etc) but been advised this will not affect the satnav/settings screen…so at a bit of a loss what route to try next…‍
Any breaks in the MOST ring will upset the other units on that ring, so you either need to install a replacement BT module, or loop the MOST ring with a suitable loop adapter.
 
‘Upset’ that’s an emotional term.. do RRS have feelings?… I spoke to the person (a good friend) that I purchased the RRS off and he said the BT unit was not installed or removed whilst he had it and the stereo and sat/nav worked fine.. ‍
 
Tbh though now, I’m not so sure all the effort is worth it.. feedback suggests that the satnav is quite ‘poor’ and the ‘settings’ is only for info purposes as you can’t adjust anything from it, and as I have an IIAD Bluetooth diagnostic tool.. perhaps I’m chasing a cause not so worthwhile..
 
I’m going to install a half decent aftermarket head unit with built in satnav or CarPlay that’ll probably be alot easier than toying around with the RRS emotional imbalances! .. but I’d love to utilise the upper screen… whilst searching for answers to my questions I came across a link that showed one of the connectors on the upper display was for a reversing camera.. this might be worthwhile investigating.. any knowledge about this out there…
 
I’m going to install a half decent aftermarket head unit with built in satnav or CarPlay that’ll probably be alot easier than toying around with the RRS emotional imbalances!

Good luck with that. Getting an aftermarket HU to integrate with the amplifier isn't easy and potentially impossible, as the whole system has be designed to work with all components installed.
Not even the PDC will work if the original HU isn't working correctly.
On modern vehicles, it's a long and complicated job to change anything in the infotainment system, if it's possible at all, as everything is linked to everything else.
 

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