Originally Posted by brendanc
Bah, screw fixing those crappy speakers. Yeah I said it! Infinity fans flame away!
Take the "built in" amp off the Infinity speakers and buy a nice replacement speaker (I used some 3-way Pioneer speakers). Hook the amp wires up to the new speaker and either epoxy or tape (I chose electrical tape) the amp to the new speaker. It might not fit exactly like the Infinity ones did, but as long as it isn't banging around in your door, you're fine.
This way you don't have to fix crappy speakers and the new speaker will sound even better. If you have a subwoofer (or subwooferS like I do) though, you might consider getting nicer 2-way speakers instead of a 3-way or higher. I didn't have the subs initially so I got 3-ways.
I've been running this setup for over 2 years now and haven't had a problem. Beats the hell out of need to buy an amplifier for my speakers.
Edit: a tip... go to crutchfield, enter your vehicle and find the speakers you like... take that model # and go to ebay
LOL @ replacing Infintys with Pioneers
Though, the OEM Infinity units aren't comparable to their aftermarket selection, Pioneer is a rather comical company. Your soultion to failed Infinty units is good though, as there is no point in paying $200 for an OEM speaker. Ever.
I'd be sure to securely mount the amps to something, even if it is the new speaker. Door slam will take it's toll on hardware over time, and it wouldn't be too hard for an amp to work loose. Picutres speak volumes in this case.
2 vs 3-way has nothing to do with whether you have a sub or not, but more if you have other midrange speakers in the car. You won't get any more bass extension with a 3 way versus a 2 way system. The 3-way coaxials are marketed to smooth out midrange response, but many 2-way systems are very flat through the crossover, so the small midrange isn't necessary. They may sound better in underpowered systems, but with proper amplification, the 2-way is just fine. Pioneer's 4-way system in some of their 6.5" speakers is just a gimmick, and offers no advantages.
If you're replacing the Infinitys and using the OEM amps to drive them, then yes, shopping eBay or google products is a great way to save money. Sometimes, though rarely, CF does have the same price as other blackmarket sellers. For headunits many times they are the lowest, once you factor in dash kits (thanks Chrysler, WTF is wrong with a DIN HU?) and harnesses.
My 06 Liberty has the base system, so when I revamp it I'll be doing soup to nuts; HU to speakers.