Hi, I've got a huge mess that I need some help with. We took a body off a 98 ram with the 5.9 engine. Removed all wiring and gauges and then installed a old cj body in its place. Reinstalled all wiring and now I can't get engine/ fuel pump/ coils to do anything. I left all yellow airbag connectors unplugged and all gauges and everything else is hooked back up. Engine will turn over by jumping starter but key won't do anything. What is bare minimum I need to get this to run again? Thanks for any help!!!