its not a 6x9, but they are 4" splits. is this the type of thing you want?
http://www.vwwatercooled.org.au/newf...ad.php?t=12524
personally i hate sound comming from the rear, but if its just the mid bass you want to come from the rear, you may be best to build a solid shelf, and just mount the 6x9 flat on the shelf.
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