I checked both players. Both had the stalk option set to "none" (or whatever it is) in emplode when they were exhibiting the problems.

I used the hijack option to disable stalk input and have tested it with one of the players. It seems to have "fixed" it. I haven't tried the second player yet.

That seems to prove the theory that the odd behavior was inputs from the tuner's stalk interface, even though no stalk was attached. It still leaves the question: is the tuner module faulty?

I have a steering wheel to sony stalk adapter for the car, but I don't want to rip everything apart to install it if the tuner module is bad to begin with.

If there is a problem with the tuner module, any ideas what it could be? Can this be fixed?

Thanks again everyone for the help!

Jim