Where did you see the plate adapter? I have a set of Polk 6.5" on the way, and the only adapter plates I've found are from Sound Conceptions, but at a pricey $22/pr.

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Louis Wang
Sugar Land, TX
1998 Black E0 #3826
http://web.wtez.net/tw57472


-Louis
1998 Black E0 #3826, lightly modded