you can buy mounting plates pretty cheap

http://cgi.ebay.com/INFINITY-REFERENCE-5010CS-5-1-4-COMPONENT-SPEAKER-225W_W0QQitemZ5881459824QQcategoryZ32818QQcmdZViewItem

those are what I have and even with 22wrms going to them they sound great

96' ATX Zetec- stock 96' ATX Zetec- Modded Kenwood KDC-319 5.75"-2 MTX 12's Roady XT Custom door panels Mystique Cluster/oil pressure Getting repainted(in primer) Pre98 Lip SE skirts Mystique front lip dingless badgeless