Recently I have noticed the DAB reception on my A4 B8 (MMI 3G) has become sporadic. I've replaced the antenna amp and the aerial disruption suppressor and also have checked the wiring. Using the engineering menu I have been able to see the quality of the DAB signal and it is behaving really strangely. If I have the boot open the signal is excellent. Also if I open the rear driverside door it is again excellent. What's also crazy is if I sit in the back seat and put my hand close to the rear screen the signal is great. I'm totally baffled!
Can anyone suggest what could be going on? The FM side seems OK.
Cheers, Lee.
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Seems to be caused by my MMI multimedia interface. Unfortunately, I will not have a reversing camera until I can work out why.
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