Chrysler LHS speaker replacement

Were trying to replace the Infinity speakers in the rear. Confused as to how to wire new speakers. There is a wire harnes on the back of speakers. Does the Infinity sound system have built in cross-overs or amp.

It is a 94 LHS

Any help would be greatly appreciated

I think it's just an infinity amp that increases the power output of the head unit.  It runs straight to the speakers without any equalization or crossovers so any aftermarket 6x9s will work just fine.  They may not sound the same as the rest of the infinity speakers, but it will be pretty close.

The foolproof way to hook up the speakers is to retain the factory speaker harness, and use an adapter like those available from crutchfield, to plug into the wiring.  I think the ones you need are these, but if the picture doesn't look like it matches the back of your infinity speaker, then try this one instead.