I got the remote and tiu both set as number 1. Added the TMCC engine and still get no response. Keep in mind, I have a Cab 1 and a Legacy Base, I have two complete DCS setups. So I can test every combination of remote, TIU, and TMCC Base. The only item I don't have a duplicate of is the 50-1032 cable. And you're going to say; "that must prove it's a bad cable". Well that may be. I guess I'll just have to buy another one...some day.