I can get sound through my radio, but no video to the screens. There was a little black box connected between the screens and the player itself, but that seemed to have disappeared! I think it's like an RF box, but with special connections.

Is the DVD player connected to the television via an HDMI cable? You have to click Source or Input on the remote to move to that Socket.

if you connect the brown safety ground wire to the black ground wire it should start working, mine was doing the same thing and that got it working.

Sounds like there could be a shorted wire possibly power but what sounds like happened is the unit grounded out and blew the cigarette lighter fuse. Check fuse box for blown fuse, if this is the case I would suggest pulling radio out and having the wire harness for the radio professionally connected and inspect all connections

if evrything is ok with the dvd (make sure the dvd is working fine), you need to hook up the yellow/ blue wires and yellow / black wires one for parking breack and the other for the breack chek the diagram on top of the alpine radio .

Hi.

That usually means that there is no video connection.

Check the video connections to displays and check the video connection at the back of the main DVD unit.

Regards.

I would start off by doing exactly that removing the black box tuner out of the equation. The next question is did you install the black box or did you have someone else install it for you. If the box is not installed propperly then the audio outs could not be wired up correctly. Double check all of your connections. It could be something as simple as bad or no power to the box.

check on the main wiring harness you wil see a black box on the yellow wire. open up the cover. there is a 10 amp mini fuse inside. if it is blown replace the fuse. also check your main radio and accesssory fuses in your fuse box. if no fuses are blown check all wiring connections.

if you are popping fuses you must ground all the black wires to metal in the car sounds like the ground is carrying a positive charge .......you must also check the 10amp radio fuse located in the panels of the car mostly located in-dash panel by the door ........hope i helped

If your radio is the pioneer model stated, it definately has a fuse!
The little black box on the yellow wire contains a fuse.
If there is no black box on the conctant power, you may have damaged the radio with a voltage spike(s) when connecting the battery posts.

i had the same problem but i went to adjust settings and it says right speaker left speaker and you have to set them on ten