So my dash went out. Lights up with ignition but no numbers are showing. Took it apart and had signs of water damage. Got a nice looking used one from ebay and still having the same problem. Seller claims it was tested fine before shipment and is willing to take it back. Getting good voltage at the wires. Don't see any other obvious signs of corrosion. Did I just get unlucky or am I missing something? Feeling now like I should have just gotten a trail tech. Thanks.