its ****in weird! only happens on the radio. i've heard of other sony xpload head units with this problem but haven't heard of a soloution. when playing cd's it works fine, but when on the radio the volume of the sound goes up and down, all the wiring is fine. and it kindof sounds like one speaker would drop low while another gets a little higher. voltage has been checked and is normal, it never moves around while this is happening. stumped? me too. ps. don't buy sony.

losing stereo signal

definately aerial problems cheif, replace you aerial/wiring, and im certain it will sound like new and its true, i dont have anything nice to say about sony either Some original photos have not been recovered yet.