Be ready for your vehicle to look like this. The necessities: mobile email, gps, and satellite radio. In my case, Blackberry, Garmin Nuvi, and Sirius. My truck had factory XM radio, but thanks to the Chevrolet Avalanche forum, the Sirius radio (with a Tivo like buffer) is hacked into the XM input on the factory radio, hence the "Preview." This eliminates the need to use the anemic FM transmitter in the Sirius unit, and the sound quality is great. Also, below the Sirius unit is a 1/8 inch stereo plug from Radio Shack hacked into the satellite radio that interrups that, so I can plug in my iPod. I drive a 2004 Chevrolet Avalanche, but you can really drive what you want. I'll do a later post addressing the most common question I hear: "How do you get started in accident reconstruciton?"Gary Johnson
