89 wiring diagram request
 

Just bought my first 12 valve a few weeks ago and I've fallen in love. Minus the hack job that previously owned it... The gauge cluster apparently "fried" so I was told. No fuel gauge, voltage, water temp, or oil pressure. Only the speedo is working. It has an aftermarket oil pressure, and water temp gauge along with a boost and pyro. I've had a hard time starting it in 32 degree weather lately after sitting for days. The grid heater relays appear to be gone, and there's no hot wires going to the grid. The whole harness and dash is hacked and poked and crimped. I would like to clean up the dash, and get rid of aftermarket crap that was chopped and spliced into the main harness. Getting to the point. I know I can purchase a decent owners manual threw genos garage or elsewhere. But if anyone could give me any helpful info or message or email me wiring diagrams on the truck that would be very much appreciated.