[roger1]

I did misunderstand. I thought you had your dash in place.

It's the depth of the speaker on the d/s that interferes with the center vent duct.
It's still very tight with the RetroSound speaker but it does clear. But like I said, the speaker has to move forward of center with the grille openings at the top. No big deal though.
Fabricating the bracket was easy. That slotted steel brace was something I had thrown in a box from some earlier project. Mounting tape around the perimeter of the speaker top like I did is something I would recommend for you to do as well.

Yes, that is the correct RetroSound speaker. I would think the JL Audio as well as the Kicker speakers I originally chose would be superior to the RetroSound. However, the reports on the RetroSound is that it does sound very good. Installing kick panel speakers or cutting holes in the door panels were not options I would consider so the RetroSound will have to do.

Talk to Miguel at CCS. I think they will give you a full refund. I think all they are concerned about is whether they can resell the speakers as new. Once I sent a photo that showed I didn't alter the wires, he approved my refund and even paid for my return shipping. I had modified the plastic that they mount to but he wasn't concerned with that. I had rounded the corners a bit to clear the defroster duct.