need help finding a product

[COYBILT]

Hey, guys I need help finding a part and I was wondering if anyone has any insight.

I am looking for a speaker bucket that is steel, that can be welded into a door or kickpanel area.

Or a steel speaker ring that I could weld into the doors of my gto. I would like the speakers to be recessed behind the door panel. It would give the car a smooth look inside. I am looking for speaker ring/ bucket sizes in the 5-6 inch range.