I just used 3M double sided tape to hold them on. Even in the Florida heat, the rear ones are still mounted, so I hope the ones in the doors are as well!
Did u do them on on the inside Of the door panel(where the liner is) or behind the speaker? I couldn't figure out how to hold everything and stick it to the door behind the speaker all at the same time, lol. The 3m tape I used on the drivers door held good, but it must have been just too humid yesterday; no tape would stick at all. It was crazy. I'm in Louisiana so I feel your pain