radio help

i want to install an after market cd player in my 99 gp. what kind of kit will i need. also my rear speakers rarely work. any ideas why?

you will need a wiring harness and a face kit, buy them at your neighborhood wally-land. as for the rear speakers it could be any number of reasons. if you replace them and it does the same try and trace the speaker wires from the front of the car to the speaker and look for any kind of break or corrosion.