The only thing that seems odd is that both batteries test over 3 volts on my voltmeter, yet 2 remotes both don't work - that seems odd. Anyway, I'll check that. I think I might stop at AutoZone - I think they have a unit by their counter that tests if an RF signal is coming out of the remotes at all - that would at least narrow it down a bit further where the scope of the problem lies.