You need to put the aux. code 0167 in the radio shack remote. I know the 15-2103 will work..and im almost positive the 15-2115 will work. When you go to the shack, just look on the back of the remote box and under "home automation" it should say "X10". Anyways, put the code 0167 in the radio shack remote. Then use that to learn the function in the AV3000. when using the radio shack remote, push the number of the device, then channel up to turn it on, and channel down to turn it off. To dim lights push the number of the device, then hold down vol up for dim up, and vol. down for volume down. Hope this helps, let me know if you need more help.