Jason,
We changed it on all models. But, we would have probably made the change about the time yours was built. So, I really don't know if yours will reach or not. Won't know til you try. Seems that we starting seeing hitches built in 2010 being the start of the problem. We haven't been doing the longer cables for the whole two years because we didn't know it was a problem for awhile. So, we made up a few of the ugly adapters that Evan will likely need to have before we saw a pattern and made the change. I do have to say I don't like that we had to make the cables longer. We already run longer cables than is normal on a trailer to account for everyone's hitch setups. Now with the longer cable it is always just too long (expect on a Toyota). I guess that is what tie wraps were invented for.
My suggestion would be for everyone to ask Toyota how to resolve the issue, it is their very non standard hitch arrangement that is the issue. I would hope that they have an answer for their customers. But then again it is probably like Subaru requiring our customers to use trailer brakes as to not void the warranty and then the Subaru dealerships refusing to install brake controllers in their cars so our customers can used said required trailer brakes. Likely it will get you nowhere. Ay carumba!
Cary