2012 500x    i bought it used and started looking for the trailer wiring harness and there is none, nothing even mounted to frame. manual says its on drivers rear but no! previous owner has removed all of the harness, only thing i have is the 6 blade square connector under the seat. short of ordering from ebay both halves of the harness is there a way to wire into that plug foe a flat connector or will i just have to bite the bullet?

Where do you bring these content because I'm looking for these content?

Look in the 500 category. There is 2 manuals to download at the top. 1 is the EFI model, 1 is the carb  model. Yours should be efi

already have a manual, i finally just tapped into the factory 6 pin plug so as not to damage wiring