Okay guys, big problem here. We have a small car lot, and we rebuild wrecks. Well got the big idea to buy a roll over 05 duramx lly. Bought the truck welllllll worth the money. We were just gonna do an easy cab swap and go on. Well when the truck came in it didn't have pw and pl. so we decided to put a new harness In it because the new cab and doors had power options. But we didn't put the new harness in until we had drove it some. So last Saturday morning pulled the dash out. Factory harness out. New harness in. Now I have windows working the front two but now the truck won't start. No power to the ignition fuses in the cab. Any clue what could be wrong to cause the truck not to start? Really need to get it going again. Any help whatsoever would be much appreciated.