I need to change my midrange speaker in my Infinity kappa 90 it is 4,5 inches and faller Vifa M11MG -09-04

SOURCE: how to install infinity kappa

If you can give me more info should be able to help ,what rms wattage is the amp and speaker is it a subwoofer or pair of speakers.

SOURCE: Vibration in midrange speaker - Infinity Kappa Series home speake

I have what sounds like the same problem with my Infinity's. Found a small crack in the foam surrounds of the speaker cone. Looking for a place to buy rebuild kits on the internet when I found this. Hope this helps.

SOURCE: I need a 5'' mid range for an infinity reference six speaker

you can buy only the membrane. Is available in all professional sound repair stores

SOURCE: I have a 2002 Chevrolet Camaro with the Monsoon

one of those wires on your speakers is the common ground for both sets of wires in your camaro, Just take the negative wire from both sets of wires and run it to the single wire on your new speakers. The other 2 are positive from each wire. good luck