I highly doubt the wiring has changed at all.Have you seen or heard of anyone getting trailer lights successfully wired on a 2013 yet?
The dealer, nor Subaru customer service *think* there are any major changes to the light wiring. However, nobody seems to know for certain. SoA did tell caution that they do not have technical expertise either. So they could not be certain.
Thanks for the post!I just had a Curtis 2" hitch and trailer wiring installed on my 2013 Outback. There aren't any options to select 2013 Subaru yet in the systems of the installer, so he used 2012 as the year and everything fit and works great.
Trailer hitch looks great. I had a 1 1/4" receiver on my 2011 outback and I hated it. Apart from my bike rack, everything else I used it for I need to use a male-female adapter to adjust to 2". I hated the rattle and sways that the adapter caused. Plus, I was able to get the 2" receiver hitch and wiring installed for less than the OEM 1 1/4" package.
You may not prefer this, but I chose to have the trailer wiring ran through the inside of the car and not underneath. With how little I'll actually use the trailer wires, I'd rather they sit tucked away above the spare tire than dangling underneath the car exposed to the elements. Plus, it makes for a much neater install IMO.