I get a light clicking sound out of the headphone output no matter where the audio levels are set. The level of the clicks stay the same. I can mute everything and the click is still there. I used a couple of different receivers to amplify the audio and it didn't help. If I change the receiver audio input it goes away. It is coming from the 1500 unit. It is a random pattern of clicks not any further apart then a few seconds. Some times there will be a quick string of 3 or 4 clicks. Clicks or ticks would be a good description of the sound. If I stop the radio while it is still powered up, it goes away.
Thanks for any help and info