I encountered a similar problem this week while touring in Spain - all of a sudden, the cradle stopped powering the device. For me, this was a show-stopper equivalent to getting a flat tire - I don't speak Spanish, and I have been riding about 200 miles a day (and plan to keep on doing so) along twisty mountain roads. No GPS = no idea where to go next.I checked the cleanliness of the pins & the back of the device - no apparent problems there. So, I decided it was time to start tracing the power supply all the way from the bike's fusebox to the pins. This involved some disassembly of the moto - but, no problems found.I then took apart the clip that the 660 mounts to. There are 7 very tiny Phillips screws holding it together. When the two halves are separated, a small plastic piece - the button you push to release the 660 from the mount - will fall out. No big problem, it is obvious how it fits back in, you won't have trouble figuring it out.There are two small electrical connectors inside that connect wires from the cable to the circuit board inside the mount. One connector has about 10 tiny pins on it - it supports the use of external devices such as a traffic receiver, the microphone & headset jacks, and (on later units for North American use) an XM radio receiver. The other connector, which is a wee bit bigger but still quite tiny, has only two wires - red and black, those being the 12 volt (nominal) power supply from the moto and the ground. I unplugged both connectors, which allowed me to fully separate both halves of the mount.I checked voltage across the red and black wires and had exactly the same voltage as I measured across the two terminals of the battery.There wasn't much else I could do - obviously, nothing on the tiny circuit board can be repaired in the field - so, I put it all back together. But, much to my surprise, the darn thing worked again after I put it all back together. I have no idea what I did - perhaps there was some microscopic corrosion or dust on the little connectors that was interfering with power flow and I inadvertently cleaned it off by unplugging and reconnecting the two connectors.The circuit board itself can be removed from the plastic body of the mount (two more Phillips screws, even tinier than the 7 that hold the mount together). I did undo those screws and take the circuit board off the front half of the mount - but, there's nothing to see except the back of the circuit board. The spring-loaded pins are integrated directly into the circuit board - it's a cleverly sealed-up assembly - and based on my observation of that assembly, I suggest that rather than using WD-40 to clean it (as Roger mentioned in post #8, above), one should only use electrical contact cleaner. WD-40 is a combination of solvent and lubricant, electrical contact cleaner is solvent only. Solvent will evaporate, lubricant will not, and there is no way for excess lubricant to escape from the bottom of that spring-loaded pin assembly.Regards from Spain (back on the road again...)MichaelPS: When you re-assemble the mount, don't forget to put that plastic push-button thing back inside the two halves prior to re-installing the 7 Phillips screws. If you do forget, for sure DON'T put the 660 into the cradle until you have taken the mount apart and put that plastic release push-button back in place - otherwise, you'll never get the 660 out of the mount again.
