I recently bought a 95 Mack dump truck with the offset cab. The previous owner did some creative wiring because they werent smart enough to fix it right. They jumped a hot wire to my fan switch to power the fan and ac compressor. It also makes a lot of other things do weird stuff. The local Mack dealer said they cant get a wiring diagram and gave me a number to call who couldnt help then he gave me an email and he could help. That guy gave me the email to the mack history museum. Havent heard back. If anyone has a wiring diagram, or at least the part for the ac and fan it would be greatly appreciated. Thanks