this information has been posted earlier but is worth repeating. while this information works for lx470's up to 2002, it is up to you to check if the wiring for your vehicle is the same. you can watch dvd's on the navigation screen with a simple 15 minute fix. pull the wood panel off from the center of the dash. there are two clips towards the outside of the top of the panel and two about 6 inches down on the sides. remove the electric clock connection on the bottom of the panel and set aside. remove the four screws holding the navigation screen. behind the temp up and down button there is a grey connector. locate and cut the violet wire 2" from the unit. shrink wrap or tape off these wires. this elimimate the speed sensor turning off the video. in the same connector, locate and cut the red wire with the white stripe 4-5" from the unit. shrink wrap or tape off the end that goes to the wiring harness. strip the end coming from the unit and ground it to the top left screw holding the unit in the metal frame. this simulates the emergency brake being on. slip everthing back together and only watch videos while moving ONLY IF YOU ARE THE PASSENGER! many thanks to sal who posted this back in february of 2002. by the way i e-mailed doctor bypass on ebay to ask him what his makes his $95. unit better than this free fix and got no reply.
Please excuse my ignorance. My 2006 IS250 AWD w/ Nav has an in-dash 6 CD changer and the map DVD player which is hidden behind a face plate. It is not readily accessible. The faceplate has to be removed with tools to change out the map DVD (which I had my dealer do recently - cost $318 + tax!). The CD changer doesn't play DVD's. Can you watch DVD's with this system? Thanks.