Leaking door.

[Harrison256]

I've got a 2006 Tahoe and I currently have the door panel off on the interior passenger door and noticed that when it rains it literally pours into my door down the rail closest to the front of the car, it seems like it is entering from the edge of the weather stripping on the corner of the window near the side view mirror. I normally wouldn't care because it drains out the bottom but I am about to put new speakers in and it would literally flood my new Focals.

Does anyone have a fix for this? I'm assuming its the outer weather stripping for the RH door but cannot locate a part number for it (sorry the search function on this site won't let me search anymore. Thanks captcha)