I'm getting an annoying "tick tock" sound at about 1 second intervals coming from behind the radio, but it stops when you set the temperature to a slightly higher setting (about 9:00 on the climate control dial). When set to almost full cooling you'll get the noise, even when the fan switch and A/C are both off. It's got something to do with the temp selector. If anyone else had that happen and got it resolved I'd love to hear how it was taken care of and what it is. Thanks.