Hi, I've just bought a used mrx300 for a garage setup. I'm trying to get a cd player to work. I've tried both analog1 connection and optical1 connection. Went into setup to #2 cd input on the menu, tried the input as both analog1 and digital1. When I set to cd on the remote it says no signal (player is playing a cd). I got an NVIDIA shield tv and a cable tv box connected and working but the cd player has me beat. Appreciate any suggestions.