I didn't realize that Rodney sold speakers other than for the subwoofer enclosure.
I've never heard Rodney's speakers, but it's hard to go wrong.
With that said...
My personal favorite 4x10 is a Pioneer TSA-4103. I have compared them to Kenwood 4x10s, and the Pioneers seem to have much better bass response.
One Fiero fanatic who rode with me even thought I had the Performance Sound (subwoofer) system.
I have thought about trying to adapt 6x9s, but the logistics are a mess. It wouldn't be pretty, to do the way I want.
Edit - Every Fiero I own - or have owned - still has the stock 4x6s in the B pillars. They don't get sun baked, and if they haven't been blown out, they're usually still good.
(I really don't care about having high frequencies blasted into my ears from the sides. The "good" speakers are installed in the front.)
[This message has been edited by Raydar (edited 04-29-2017).]