Works exactly as promised - a straightforward install
Finally got around to adding the factory park assist to my 2010 Sierra that didn't have it from the factory. This wiring harness did the trick. The quality seems top-notch; the wiring is heavy-duty, the connectors are exactly right, and it clicks into place just like the original equipment. No flimsy parts or cheesy plastic.
Installation was pretty much what I expected. You gotta take your time, be patient pulling a few interior panels to route the wire cleanly, but it's all logical. If you're comfortable with basic car projects, you can handle this. Took me about an hour and a half taking it slow. Plugged everything in, fired up the truck, and the system worked immediately with no errors. No more guessing when I'm backing up toward the hitch.
Solid product. Does what it's supposed to do with no fuss. Highly recommend for anyone doing this retrofit.