having a 7-pin connector installed

[cpaharley2008]

I guess your avatar details threw me off....

[egraham]

Oh dear! I will update right away. I never thought of the avatar.

[Brian B-P]

Originally Posted by cpaharley2008

Any UHaul place should be able to install......

There are two very different types of U-Haul places. Some locations are company stores which rent trailers and trucks, but also have a hitch installation shop; while any of those might be able to handle an installation, individual locations vary. The other type is a rental franchise which has trailers (usually not trucks), and typically has no shop and no one with any expertise (in anything).

[Meari]

Originally Posted by Iowa Dave

When I dealt on the Highlander I specified what I wanted. P-3 controller, #10 wire to the trailer run through the interior. Disconnect like Jon described, circuit breaker on the #10 wire, 7 pin and 4 pin on the left side of the receiver, etc. my salesman said he didn’t think they could do that. I stood up. He quickly called the service manager. Yes they could do that and he had prices for each. We made the deal. They had a difficult time doing it the way I wanted but they got it perfectly correct. I tipped the technician who would not give up and got it right. Three seasons later it still works well. Otherwise I would go to an automotive electronics shop who understands Toyotas. There are people out there who understand how to do this. Commercial Heavy trailer repair and sales places are usually a lot more proficient than an RV dealer with a yokel who has poked himself in the butt with the wire probe he carries in his back pocket. I’m a strong Toyota proponent but their “Trailer tow package “ is very weak, lacking plug and play brake controller , the 7 pin, circuit breakers etc. But they like to sell vehicles so remember, they work for you, not the other way around.
YMMV
Iowa Dave

"#10 wire to the trailer run through the interior"


Newbie here. Why would one want the wire run through the interior? I thought it was installed from back underneath the vehicle and then to under the dash?

[Iowa Dave]

I use my Highlander for several things besides towing the 21. It makes occasional trips though picked cornfields, tall grass in my wetland area at the farm and even does a few low water creek crossings each season. I try to avoid having anything hanging down under the vehicle including wiring so my wiring comes off the battery , through the firewall, into the interior , under the carpet and exits near the 7 pin/ four pin hookup alongside the hitch. I ran my 2012 Highlander wiring that way too. Has worked out well for us.
YMMV
Iowa Dave