me mate has just fitted a dvd an screen to his car the power is getting to the dvd fine and the screen but it is only putting out sound an no pic any ideas what the probs could be,

Is the screen PAL or NTFS, that could be the problem.

are all the video signal connections secure, thats the yellow aux jack, just make sure they are fine, if not as scooby said go into the settings of the screen and see if you can change it from pal to ntsc or the other way round, cant really see it being that, cos if that was the wrong way round, you would just have a black and white picture

cant see any settings on the screen but it is on and it has sound, an the lead seem to fit ok, is it worth payin for a new lead.

for video signals you can use normal rca leads, so just try one of them, any troubles mate give me a shout and i will have a look at it before you have to take anything back

think i might try a new lead, where is best to get 1 from an how much r they, (is the the lead going form the back of the screen?) ant got a clue.

if its just to try out, use a normal rca, like the ones you get in an amp wiring kit
and plug it into the yellow socket and that should work