contact Pareg at www.TVonNAV.com and they will supply you with a TV In Motion Module that you can easily plug and play on to your oem Tv module.This module also lets you control tv functions from you steering wheel buttons.I got mine for usd 199.00
and also got the AV Harness cable which provides you with Video/Audio inputs/outputs for a Dvd player,PS2,Camera, etc(very usefull!) .This is also plug and play.For more info check UCrewsX5 excellent article....http://www.xoutpost.com/articles.php?...ticle&artid=30