Anticipating a substantial road trip I really wanted to eliminate or greatly reduce the wind noise that occurs at highway speeds. Door weather stripping of course helped but did not eliminate the noise. It's especially annoying when driving in a strong cross wind and in Oklahoma that is almost all the time when driving east or west. I discovered that the noise was coming from the felt seal around the window channel. I sealed it with masking tape and the difference was amazing. I can listen to the stereo without damaging my hearing and conversations in the cab are comfortable. Not real pretty but Mission accomplished.
