Dice with Video help wanted

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Hi Guy's

I think I am going to have a Dice kit. However, what I would like to do is the same as this guy (http://www.xoutpost.com/electronics/...av-screen.html ) (have the dice kit in and beable to watch videos off my ipod)

Can anyone tell me how I can do this without having to switch cables on the ipod (from dice kit to video kit)

In the boot/trunk I have a video plug (where I have had a DVD player istalled)

Please help me on this.

Many thanks in advance

ASH