This PIONEER TS-D1702R 6 3/4'" COAXIAL 260 WATTS NEW 2010 - eBay (item 280612755850 end time Jan-13-11 13:03:56 PST)
or this should be fine Diamond Audio D661i 6-1/2" Component Car speakers hipow - eBay (item 300411401057 end time Jan-20-11 12:43:07 PST)