I was talking to a local installer today about getting my Mark II installed, and he let me know an interesting tidbit that I though many here may be interested in. Aparently, many 2000 and above model vehicles from GM have the airbag controls built into the same box housing the stock radio. They wern't sure if it applied to my 2000 Saturn, so a quick trip over to the dealer saved me some hassle. Lucially mine isn't this way though. Unless a replacenemt control is installed, airbags will no longer work once the factory stereo is pulled. And also theres a slight danger in setting off the airbags when pulling the stereo.

This is the first I have heard of this, but glad I know now.