Fitting After Market dash mounted Dashcam/Parkingcam/Satnav


All well until I needed to connect the Reverse cam to a +12v trigger at which point I found that the reverse lamps are switched using a ground 0v from the RRCU!
Back to basics when I was a Design Eng. 60 + years ago: solution order a relay and wire in as:
This appears to be an issue on all Jaguar Forums hope this helps if you are trying to fit a similar bit of kit

I believe that this inverting of the signal applies for the X350 also, but not the X type.