I have a 2004 Gr Cherokee and I'm trying to get rid of the wind noise coming from the passenger's side window at high speeds. I see that there's a TSB (23-015-03) that addresses this issue, but I can't find anyone that sells the "foam stuffer" that's needed to fix this. The dealer said that they stopped carrying it a while back and I can't find any place on the net that sells it.

Does anyone know where I can get one, or what the material and dimensions are?