I think I might have a clue what might be causing the noise. I believe that my right rearest window seal is rolled and not installed properly. Looking at each window from the interior, the seals are different at the bottom. My RR side rearest window seal is poking up at the bottom in the middle for about 5 inches. I can see this bit of seal in the space between the window and the plastic interior shell. The left rear window seal cannot really be seen.
Maybe everyone could check their Liberty and report back here.
This is really a hunch since I have really tried to find the exact area creating the noise. I have inspected all of the visible seals around both rear doors and eaverything looks fine and are the same on each side. The door gaps look fine and symetrical as well. So, nothing yet is obvious except for the little window seal.
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2005 Black Renegade 4x4
-- Looking for some ups! --
28D, Tow Pkg, Fully Skidded, Yummy Leather, Mopar Bug Shield, WeatherFlectors, 5x 255/70R16 Bridgestone Dueler Revo, Husky lined, and a brand new eTool. 2005 EVIC Install Write-Up Coming Soon! Currently (6/07) @ 16,400 miles! (3/07-14,100 miles)
http://www.cardomain.com/ride/2175805