Right sorry guys here goes I have nav with analogue & digital tuners , plus DVD multi changer and headrest screen (NTSC) BMW stand alone kit .
Right this is what I am wanting to do , get the tv picture to the rear screens at the moment I've cut the back of the av in/out socket in the rear , then I've found which one is (av out) and touched them two on the yellow &black cable under the seat which must send the picture to the screens , but the picture is sh@t .


Right next question hope this is helping , when I touch the yellow & black cable on the av in that I've have cut off and switch the DVD multi changer on , switch the nav to av the picture is all fussy and that is it hope you can both help me

Sorry about messing u around

Regards
Paul