Thanks. I had taken her door apart and inspected the speaker but it seemed like it had a special mount and wiring. I'll have to look at it again and possibly replace. I was trying to make it as simple a swap as possible as I've been through some aftermarket installations that ruin a whole Saturday. She was happy with the factory setup, but I know even an entry level aftermarket speaker will outperform the paper cones that are in there now.
How will a 5x7 fit in the 6x8 mount? Will I need to modify anything to install it?