Garvino,
Yes, the windows go all the way down, in fact, they go further down than with the OE window mechanism. There is no interference with the speakers at all. The speakers I'm using are Momo series by Polk Audio. I decided to use them because of the machined aluminum grilles. Someone could kick them pretty hard and it wouldn't do any damage. How do they sound ? It's a Pantera, so who really cares ! I'll post some photos and a description of my seats in the "Upgrading Pantera Seats" thread.
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