Hi,my name is Tony Schultz, I live in Tasmania, AUSTRALIA. I own a 2007 EFI American Ironhorse Slammer, 1819 cubic inch, 300 back wheel & tyre. I am very happy with the bike accept for the Thunder Heart Speedometer System. Can´t get fuel readings or low fuel warning indicator, no trip reading info. I am changing over to a Dakota Digital MCV 7400 Speedometer/Tachometer but I need a copy of the wiring diagram from the bike´s system to the current Thunder Heart Speedometer/Tachometer so I don´t muck up the connections or blow the guts out of the new Dakota Digital MCV 7400. I hope someone out there can help. Regards Tony from Tassie