Don't know about you, but after installing my Hidden Hitch, I noticed a lot of noise from the back.
Worse yet, it seemed amplified in the back of the RAV. Initially I thought something was wrong, but after checking everything thoroughly, and verifying torque on all the bolts, I determined the source of the noise was the loose fitting drawbar rattling in the hitch receiver.
So...how to fix this? I thought about shims, but the drawbar fit is a little tight and I didn't want to worry about the shims falling out. So after thinking about it, it dawned on me: Put a sock on it.
Get yourself a regular tube sock. Slip it over the back end of the drawbar. You should be able to push it into the receiver, with some resistance, for a nice tight fit. Use a pocket knife to cut a hole in the hitch pin hole, insert the pin, and you're done. (Well, maybe trim the excess sock off, LOL)
This free solution resolved 100% of the noise issue. It's easy, non-destructive, and everyone has a spare sock in their drawer that should be thrown out anyway, right?
Hope this helps someone else with the same problem!