[ImperialCrown]

These are non-Infinity?
5 1/2" shouldn't be too difficult to find. I've used Walmart cheapies, Parts Express and MCM.
http://www.walmart.com/browse/auto-electronics/car-speakers-subwoofers/3944_3947_38981/
http://www.parts-express.com/cat/dash-door-deck-car-speakers/390
http://www.mcmelectronics.com/browse/Speakers/0000000028
Car door speakers should be considered an outdoor environment and be fairly weatherproof.
Magnets add weight for shipping charges, so you might want to see what is available locally first.

 

[Bob Lincoln]

www.crutchfield.com is a good resource.

The best that I've found are the Cerwin Vega Stealth series. They were discontinued, but there should be a replacement series. Full, rich sound in all ranges. I have Polk in my truck, they're a little slanted toward the bass range. You can get superior speakers for as little as $60 a pair. Infinity (not the Chrysler Infinity) speakers are also good.

 

[1993NewYorker]

Hey, Thanks for the quick response Imperial Crown & Bob Lincoln. I had a door rattle and turned out to be the plastic panelcover on the speaker was loose. Then while checking the speaker the outside cone is all wroughted away. So It may be to Wally World for a cheap replacement set. This wasn't the chrysler infinity system and someone had put in an aftermarket stereo. I do have a chrysler infinity system in my 97 Sebring Conv. and its out of this world on sound quality. Super nice system!
Thanks again for the help.