I picked this up a few months ago, 1 fob works fine, the other works to drive the truck but the lock buttons don't work. I've swapped the battery and reheated the solder joints for the battery clip with no luck. I bought a replacement key and swapped the electronics to the non working key but can't seem to get it to work. The key still works to drive but can't get the buttons to work, any ideas? Can't seem to find a procedure online that works.