Issue with navi screen
 

My navigation screen 16:9 act strange strange randomly.Some time works great some times dont.I have burnout mk3 end my qvestions is.....
Can or can not nav screen work normaly without navi comp?
What is the Best Way to find loose wire or bad connection?
End finaly which Exactly Fuses are connected with navi screen?
My navi screen most of the time flickers....Some time when fuse 47 is out end in again he work normaly....but only for short time...(open or closed door or trunk)he flickers again.....
I tryed to disconect navi comp blue end red jack but that does not help.....
Any advice?

Yes, the nav will work with either the TV module or the nav computer (or both).
Disconnect every plug to try and do a visual check to find it, if nothing obvious, then do a continuity test on each lead.

The nav system has 2 fuses (I think), 7 and 41.

Sounds like a bad connection.

Red is for the speed sensor and reverse signal.

Disconnecting the blue will give you a blank screen (unless you have the TV module).

No not really, it could be anything from a loose wire to a faulty mk3 or screen.

3 fuses not 2.