Hi

Occasionally my Gamma 4 head unit freezes and I have to unplug the power and power it back on. It happened this week but was unusual in that normally it just works but this time the head unit said learning and then it said the single cd player is not present. Does it need to re-learn it in some way? The head unit is working as normal. I have power to the cd unit as I can load and eject a cd.

Thanks