i found a SHIT load on ebay heres a link, sorry to hear that.. If you need help disassembling the door panel, I can help.. really car friendly..

eBay - grand am mirror, Parts Accessories - buy and sell on eBay Motors
illnillinois Reviewed by illnillinois on . Son of a bitch....! So i wake up this morning and I smoke a bowl. Then i get hungry so im heading out to get something to eat. I get to my car and what do i see.....MY DRIVERS SIDE MIRROR HAS BEEN SMASHED OFF! And this is on a Grand Am so im gonna have to take the whole goddamn door panel off to replace it! These goddamn punks around this damn town have nothing better to do than to fuck with people's shit! Rating: 5