EFI -3G hemi

USCG CHARGER said
I dont have a factory harness either... so either way it's gotta be close to what I's pay for a custom harness right?

Figure out what year the PCM is you have and search craigslist for a truck in that year range being parted out. I picked up a complete 06 Charger front (everything in the engine bay) harness for mine that way and it was only $200