I don't have a picture, but they do make rattle reducers for hitches. I'm not sure which style you used so I can only help so much. Kurt and many others make different styles. I have one on my bike rack and it helps, but the rack itself makes a bunch of noise.
A quick Google search will get you...
You might have better luck in the tundra forums. This forum is pretty quiet.
Your looking for a signal wire location, right? The actual lighting wire is coming straight off of the battery?
If you have a volt meter, get in the fuse box and find a fuse that's on with accessories or battery and...
Edited because your looking at the cross rails, not the cargo rack.
Get the OEM cross rails. That should alleviate your concerns about contact since they're designed for the vehicle.
There will be wind noise at highway speeds, but not so much during city driving. Vibration shouldn't be an...
Does anyone know if the I force Max badge on the hood has alignment posts?
I want to remove it, but don't want to leave holes in the hood.
Just for reference, the badge isn't the big one with the vent, it's just the metal badge. Will post a picture later.