I just purchased a 2002 ram 1500 quad 5.9 4x4, no power to anything with key off. I Checked all fuses, pulled every plug from fuse box and clean the pins. Looked at wire harness and can't figure it out. Fuse 51 is good, I've search for 2 weeks and can't figure it out, there is also no radio or power to obd port for scanning. Any advice would be appreciated, thanks.