The ZX700 has never worked since p/u our trailer 2 weeks ago.I was told by another member to pull the fuse and reinsert it after about a minute, as that's what worked for them.Didn't for me.I checked the wires on the back of the stereo and the xm sat. receiver (it came with the unit and is mounted beside s.s.) and there is power to both of them (12.4 v) but no power when I tuned them on.I put the xm rec. in my truck and it worked fine. There is an inline fuse for the sat.rec. and a plugin automotive type in the back of the stereo sys. both were ok. Thank-you for taking the time to read my thread and any feedback would be greatly appreciated.