Word on those aftermarket 1.5x Din models: I had one of the top of the line Pioneer models put in right after I got my car in 1999. It was good back then, but the technology in the 1.5x Din models has not kept up with the rest of the Din models. They don't play MP3 CDs, and have limited iPod interface options.
I recommend you get a more modern Din sized unit instead. And I say that with regret, because I loved the look of filling the entire 1.5x din hole in the dash with a head unit. It made it look like it was stock.
Eventually it caused me to swap it out for a Din sized unit.
97 SE, teflon wiper blades, Dunlop Sport A-2 tires, Leather steering wheel cover, Pioneer DEH-P480MP mp3 CDRW head unit, Pioneer 12-disc changer, iPod hookup, Boston Acoustic 3 way 6x9'*, Boston acoustic separates in door pods, Alpine 4 channel amp in trunk. Magnaflow dual outlet muffler and Ractive stainless tips. Autozone rice pipe and K&N 4750 intake kit. Clear corner lights. Energy Suspension end links.