Truck Squeek...or Chirp

Has anyone else experienced a squeak or chirp coming from the back, side, or...of their tundra?

It starts around 70km/hr, and disappears when I get over 100km/hr. Loud enough that I have to turn the audio up high enough to drown it out. No louder or quieter with windows opened or closed. However, passing under a bridge, or beside a semi, it gets louder then softens once passed.

It's not a stone in the tires.

No vibration, so it's not a balance issue.

Tires were rotated, and it's still happening.

The Torx bolts in the truck bed were as tight as F.

The truck is a 2025 TRD OR.

 

Update...for anyone that cares ...

It was an improper balance of the tires. Costco, which did the balance on the rims the first time, did not install them on my truck; I did. However, the chirp/squeak was driving me nuts. So, contacted Costco again for a rebalance and lo and behold, the notes on the report were that 3 out of the 4 tires were not properly balanced !

The chirp/squeak is now gone, but now there is a vibration in the steering wheel !