That part of the dash is about 4mm thick of foam and rubber, you could easily cut and use an aftermarket grill. Perhaps recess the baffle a bit so the aftermarket grill sits flush and then have it color matched to the dash?
PixelPusher had a set of DLS 3 Ways installed and had his 3" mids installed in the dash and the tweeker on the a pillar. 6.5"s in the doors. Even the guy who installed it was impressed with the setup
Perhaps go with a set of 3 way focal utopias? mmmmm utopia..
