UPDATE: Bob Caruthers has another quick and easy idea for an install: Here's what I did: Bought one of those Radio Shack buttons (#275-644); Took my remote garage door opener apart; Soldered two pieces of wire to the circuit board of the remote garage door opener after I figured out by trial and error which terminals were connected to its switch; Popped off the knock-out cover on the driver's side that is often used for Moss interior light kits; Drilled a 1/2" hole in the center of the knock-out; Attached the switch in the hole; Connected the two soldered wires from the circuit board to the switch; Pushed the button; The garage door opened; Stuck the battery in the knock-out hole; Stuck the circuit board in the same hole; Re-attached the knock-out cover; Pushed the button; The garage door closed. Easy as pie and convenient, too. Bob C. p.s. changing the battery will be quite simple: just pop off the knock-out and pull it out.