After monkeying with the latch a bit I reached the conclusion to go to the dealer today. First he wanted me to leave it all day on a Saturday, so I told him I've already took off a day to have the alarm activated, which they forgot to do when I bought it. He then had the service tech look at the window and bang on it a few times and he said he really didnt hear a big difference. I told them it rattles on every bump, rough patch and truck passing me, so he said they'd order the part, even though they don't just order parts without seeing that's the problem. Trust me, its the problem. The latch is just too loose and the pieces of plastic rattle together like the plastic theyre made of. Its a pretty big piece of glass to just be held onto the vehicle with two plastic hinges and a cheap latch. Maybe not the best design.