I purchased this trk and brought to mechanic to.

I purchased this trk and brought to mechanic to install diesel computer board since not starting in cold, now 9 wks later my mechanic tells me that although I had lights and gauges and radio when I dropped off that now none of the gauges or radio are working and the back lights are dim as if not getting enough power. He says all fuses good and checked ignition, hes at his wits end and said he cant get the full electrical schematic and doesnt want to start tearing apart the dash(I dont want him to do that either) any ideas I really need me truck