For the past week I have been trying to install my new gauges in my 93 Toyota. I've gotten them all pretty much hooked up, except for my speedometer. My factory sender is electronic and that is why I got the electronic progamable speedo (auto meter). Now I've called auto meter and they have tried to help, my factory wiring digram doesn't really help at this point, and toyota was no help (they wanted me to bring it in to have a tech look at it). Has anyone out there done this install or have any ideas on how to find the signal wire needed to make my gauge work.