Laredo Side Mirror with backplate...?

A couple of days ago, my side mirror popped off while I was backing out of the garage. The mirror and the backplate and the sorrounding plastic mold thing popped out but the actual mounted part didn't get damaged. Anyway, when I put everything back in the mirror was loose, and it went bye bye while i was on a highway. The plastic mold and the mount are still there ok but I don't have the mirror or the backplate (the thing the mirror is attached to that plugs into the mounted piece). I looked on ebay, it looks like people only sell the glass...without the damn backplate. What do I do? Do I really have to buy a whole new side mirror assembly? Oh yea, it is a 2006 JGC Laredo.