What's available for in-dash installation on an '83 Cutlass? The Monte Carlo and Regal are the same, so any will do. But this one mounts through the smaller rectangular cutout designed for cassette and I'd like to keep it that way. I also have several of the dash plates from later years that mount DIN size CD decks - That's an option but I'd like to keep it original.I've got about $20K in this ride - All go fast stuff. Big block, aluminum heads, roller cam, B&M transmission, Ford nine-inch differerential with posi, Wilwood disc brakes on all four wheels, and on and on and on. But the sound system is a stock replacement and amp; Nice and new but nothin' special. Any ideas?