I know when mine is cold (Canada Cold) it does realy strange things. The worst is it only goes up 40% and if you hit the switch it just retracts. If you hold the switch it will go all the way up , but the moment you let go it will retract all the way back in. But I also have some sympathy for it too, being stuck out there in the cold (around 0F).
is your radio wired hot or through the ignition? It could be from a power spike/short triggering the antenna?
is your radio wired hot or through the ignition? It could be from a power spike/short triggering the antenna?