Jonmalibuss Posted July 4, 2005 Report Share Posted July 4, 2005 It helped out a lot but what I found is that most of the problem seems to be at the roof braces the factoy uses like a foam but it doesn't even fill the huge gap between the brace and the roof skin you can see in the pics I wrapped a couple of layers over the edge of the braces and then I used a cement crack filler for masonry because it stays very plyable but it should be enough support to link the roof to the braces and create a lot more support. I figured while I had the head liner down I would take some pics of how the XM and Onstar antennas mount. I used two door kits of Dynamat extreme it was enough to do two complete layers in the rear section of the roof and two complete layers on the rear half of the from sections mainy where the front was weakest. Quote Link to comment Share on other sites More sharing options...
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