The LED behavior makes sense - when you went from "on" to "auto," the sub had already been commanded on and the auto mode would wait some time (10 to 15 minutes, I think) without any incoming signal before shutting down. I can't think of anything that you're missing. If nothing occurs to me, you, or anybody else who drops by, I'd recommend giving Outlaw a call in the morning and letting them take a shot at it. If it's a problem with the hardware, they'll make it right.