The cover broke off mine, it's been broken since I got the car. If anyone can get me a part# or even order me one from someone that works at a dealer. It's for a 2005 LS coupe. Thanks!
While you're at it can anyone find the # for the little red pos(+) terminal cover on the fuse box too? Thanks again!

 

http://www2.partstrain.com/store/det...Passenger_Side
Best I could find after 3 minutes of google searching. Junkyard would be your best bet. You'll need a t50 Torx bit ( I think ) and a breaker bar to get that seat belt bolt out.

 

http://www.gmpartsdirect.com/catalog/frameset.cfm gmpartsdirect has just about everything that came on the car and for a decent price too, they beat the dealerships pricing. Just select 2006 chevrolet/geo cobalt. Go to restraint systems on the left, front seat belts, buckle, view illustration, then select 2) cover cover back. Cost $11.28. For the fuse cover, go to electrical, electrical components, cover. Only thing with this is you have to request the price and they dont just sell the red post cover.