its simple,ive had to do it myself cause ive no radio code for car just purchased.at the sides of the radio exactly half way up,there are 2 spring clips,1 on each side,slot in 2 slim butter knives at a slight angle,push forward then outward at the handles to compress the spring clips right in while easing unit forward,the clips will release,standard wiring connectors at the back.
a.george27@ntlworld.com, April 2005