Audio Systems: Chrysler factory stereo packages, plymouth grand voyager, chrysler town and country

Question
I have driven a 1997 Chrysler Town and Country with the "Infinity" sound system for the last 2 years.  I just purchased a Plymouth Grand Voyager and am not impressed with the lower quality sound system.  Very tinny and not much bass.  Do you know what is different component wise in those systems.  I still have my Chrysler and will be selling it as a cheap, high mileage vehicle.  If there are things I can swap before selling to get my sound back I would like to attempt it.

Answer
you need to get all the speakers out with the amplifiers 2 in front doors 2 in dash  2 in rear  rear and doors are woofers
and two moore in the cargo area small mid/tweters
you need the radio and on the right side of the radio there are 2 relays you need them or you can make them later is just to power the infinity amplifiers  

in your plymouth you need to cut the doors and run wires 4 wires per door same in the back for the 6x8
good luck i drive a 1999 limited town and country with the infinity system and love it