as far as getting the stereo out, you need to buy "keys" that slide in vertically on each side of the stereo. you can get the "keys" on eBay at a reasonable price. im not sure what the wiring is like on the back side. hope this helps.
check out your local tyre centre or yellow pages
The 2004 Volkswagen Passat has 20 valves.
Check stop light switch for misadjustment or defect
The 2004 Volkswagen Passat is a gas-powered vehicle.
The 2004 Volkswagen Passat has a 5-speed manual.
The 2004 Volkswagen Passat has an inline 4 engine.
The height of the 2004 Volkswagen Passat is 4 ft. 9.6 in. (57.6 in.).
The 2004 Volkswagen Passat has double overhead cam (DOHC).
The 2004 Volkswagen Passat's turning circle is 37.4 ft..
The curb weight of the 2004 Volkswagen Passat is 3212 lbs..
The 2004 Volkswagen Passat is 15 ft. 5.2 in. (185.2 in.) long.