A friend of mind has a 97 2500 5 speed stock ,that he bought thru a auction. It was missing a lot of the relays under the hood and starter. Replaced the relays from a truck that was gas powered and truck starts ok ... . but ..... here is the problem. No tach, no speedo, alternator does not charge, wait light dont come on..... ideas? also truck was wrecked and fan eat some of the wires under the radiator... . think I got them all back together right but ??????