kinda bike related but then again not. I have a garage door opener. the 2 car remotes work fine. the keychain remote dont work at all. the battery is good. seems the receiver is not receiving the signal. its a craftsman, no idea how old it is. any ideas on re-programing it? i took the remote from the car last night and i aint too thrilled about keeping it with me at work (get lost/ stolen). also, how the heck do i reprogram the keypad entry? previous owners didnt leave me paperwork on it.