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  #11  
Old 04-22-2011, 12:10 PM
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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 [email protected] .


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
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  #12  
Old 04-22-2011, 01:06 PM
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The yellow black cables you are short circuiting will be composite video and mono audio. They will both be shielded and the ground is critical. You must use the proper cables, available for pence on eBay. Search for 3.5mm to RCA.

You could consider an RCA 2:2 video multiplexer, with a set of switches.

For gods sake please don't cut any more of your new car up.

Your DVD player is a Necvox dva-3210. The manual is here. On page 15 you can see that between the screens and the display is an additional box that supports the audio IR and video translation duties.

It may have RCA connections in/out you can utilise. It may or may not be under the boot carpet near the seats.
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  #13  
Old 04-22-2011, 02:14 PM
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Right thankyou so much shall I put the plug back on so the av in/out socket work in the rear or does it not matter now. Plus once I've found that RCA box do I still plug in to the av in/out in the rear seat area ??? Many thanks
Paul
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  #14  
Old 04-22-2011, 02:56 PM
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The rear AV IN out are connected to the NAV system. The idea will be to run a pair of cables from the AV out to the mystery box, assuming it has suitable spare AV in and AV out composite video ports.

AV Out connect to AV in
and
AV In to AV out.
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  #15  
Old 04-22-2011, 03:14 PM
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Big bob I will leave you in peace thankyou for all your time and info


Regards

Paul
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  #16  
Old 04-23-2011, 09:08 AM
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Big bob look what I've found
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  #17  
Old 04-23-2011, 09:18 AM
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  #18  
Old 04-23-2011, 12:24 PM
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OK.

First test Unplug the VIDEO OUT of the AD-6867. Check to see if the headrest video on both screens stops working.

If it does proceed to 2nd test.

Second test is to run those RCA video cables you bought from eBay between the AV OUT in the centre console to the cable you just unplugged back of the car as a test, using a back-to-back RCA adaptor.

If you are lucky; the nav video will appear on the headrest monitors. Proceed to 3rd test.

Third test is to run connect to the AV IN on the centre console and VIDEO OUT on the AD-6867.

If you are lucky, the DVD will be available to view at the nav display in the front of the car.

If you are unlucky, and you have PAL/NTSC issues or you cannot feed a signal into the headrest monitors, then post your results.

Finally, look for 2:2 multiplexers, AV siwtches and boosters on eBay. You should be able to split and amplify the AD-6867 video signal to feed both the headrest monitors and the AV IN in the centre console. Also you should be able to buy a switch or multiplexer to feed the headrest monitors with one of two signals.

EDIT: I'll leave it to Jochen to explain why and IR Tx/Rx'er needs 15 pins. I reckon it carries RGB and audio too.

Last edited by big bob; 04-23-2011 at 12:31 PM.
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  #19  
Old 04-24-2011, 03:56 AM
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Right here goes I've been out busy sins 7am !! Ive taken a feed from the video out ad6867 got a picture on the headunit but again it's rubbish , but when I've gone from the av out in the rear seating area to the RCA cable that takes the picture to the rear screens the picture is quite good.

Will I need one of these for the video out ad6867??
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  #20  
Old 04-24-2011, 04:04 AM
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No it needs to be an amplified splitter, because the video signal is analogue and passively splitting it quarters the signal level and hence all the brightness goes.

The picture that is rubbish, is it black and white and rolling? That would be PAL/NTSC issues. According to the manual of the DVD player you can flip it to PAL/NTSC via the menu. I think Navcoder with a Relser interface can do something with the TV tuner to switch PAL/NTSC mode.
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