I have a 2004 crossfire and need the shift lever module replaced. Can any one explain to me what the hell it is and how does it work (price, where I can find one, new or used... any info will help)? I know it sound stupid but I would like to know a little bit about it when I take it in to be repaired, so they don't look at me like I'm just another dumb blond. Thanks.

Leighanne