Did you try Crutchfields for 5X7 replacments? What about opening it up for 6X9's?
------------------
'95 Chrome Yellow GT ragtop, KN filter charger, Dynomax cat back, Accel plugs and wires, Chromed '95 Cobra R's (bought for $19.95, now 2 are warped!
).
http://www.mustangworks.com/cgi-bin/moi-display.cgi?1883