I am about to order the Curt 13335 Hitch. I've been doing the research on which harness to purchase for my particular Journey. There is the OEM harness if you have the plug near rear bumper (I don't). Then, there are 4 different harnesses on E-Trailer.com (2 non LED and 2 LED). According to Dodge's website, the 2015 AVP Journey does NOT have LED tails. IF that is correct, that narrows it down to 2 harnesses for me (56109 without powered modulite and 118567 with powered modulite). Honestly, I plan to have a 4x6 trailer that may just have taillights without side markers, etc... Could I get away with using the 56109 that pulls all the power for trailer directly from taillight wires? Am I right? Or way off base here? Thanks in advance.