Earl: My advice is to go to Radio Shack and buy one of the 15-2102, 2103, or 2104 remotes. Then go to this website and customize it to your heart's content. One-For-All Remotes Homepage (Take your time and read through each sections text. IMO, time well spent!)
You'll even be able to have remote control of a couple of functions your 3802's remote can't do! (If you want...)