Here are some pics of my car pc install in a 98 GS300. The applications and menus are all controlled by Girder(
www.girder.nl):-
The Lexus Sat Nav displaying the carpc main menu-
MP3 player running showing album art and spectrum analyser. LCD showing track title etc-
Round green switch on the right is the ignition overide and the black button above it swaps between the Lexus Sat Nav and the PC. Just visable in the foot well is the IR receiver for the steering wheel remote-
PC in a mini-itx case. To the right is the display adapter. Above is the power supply and FM modulator (just need to make a wood box to cover the mess)-
Power supply including low drop out regulator and automatic startup/shutdown controller adapted from
http://linuxcar.sone.jp/pic.en.html -
PC composite to Lexus RGB converter-
This forum has been a great help in configuring the setup.