2014 Z71 Tahoe - squeak and rattle in rear quarter window (w/ antenna)

[Jeff Tredemeyer]

I have recently bought a 2014 Z71 Tahoe and have an annoying squeak in the rear quarter window. The one with the antenna and near the 3rd row seat. Has anyone else experienced this? If so, have you been able to solve or minimize the noise?

I love this truck, but the rattle is loud enough that I can hear it while I am driving and over the radio.

Thanks for any suggestions anyone has.