I bought a new window sweep for the driver's side. It's that rubber thingy that goes on the outside of the door on the top that keeps crap from going down the window channel. I cannot for the life of me get this thing on there right. Is there some bat trick I don't know of? It has clips that are supposed to snap over this rail on the inside of the door, but when I go to put one in, the last one behind it pops out.

 

Seems like there was a post not long ago about doing this very thing...