Hi Jochen thought I would try this on my Rover
No joy unfortunately, scanning intermittently detects the CD changer or Radio but nothing else.

I also noticed the Bordmonitor goes blank as soon as I start the navcoder app then returns when I shut it down again.

Not the end of the world though I was just curious to see what might happen

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Keith Alexander
Rover 75 CDT Connoisseur Se, MG ZT+T 190, MG ZT 260
Ellesmere Shropshire England