I'm trying to put in an aftermarket tach in my 91 jimmy and am having a little bit of problems. First off is the wire i get the tach inout from the one that hangs off the ignition coil that goes about 2 inches and then stops. second where can I get power for the tach from. I tried the radio not a good idea. then i tried ACC on the fuse box i'm not sure if that works. Please help before i have little red splitter on everywire under the dash. one more thing whats the easiest way to get the light for the tach hooked up.