Garmin edge 520 will not connect to satellites and there is something rattling inside. Unfortunately, I bought it on eBay and cannot get it repaired. Desperately need a new computer with good display and ant+/bluetooth like the subject models. Anyone got one for the cheap? Unfortunately not looking to spend much more than $100...I know it's a tough ask. Willing to trade my old edge 520- works fine except for the lack of GPS connectivity and the rattling.