Audio Systems: Accessing door speakers, ford explorer eddie bauer, rear cargo area

Question
How do I access the door speakers -front and rear - in my '94 Ford Explorer (Eddie Bauer model)? I just recently bought this SUV and noticed that there's a bit of buzzing coming from the speakers I guess because the previous owner had installed a powerful Pioneer DEH 2300 CD/Radio. I have to keep the radio volume down to prevent the buzzing. I think maybe the previous owner had installed premium speakers along with the Pioneer head unit but removed them and reinstalled the OEM speakers BUT left them driven by the Pioneer head unit. Oh yeah, there must of been a powerful bass speaker system in the rear cargo area - only the power and audio cables were left in the rear taped up in the rear.
    Any helpful advice would be appreciated. Thank-you.

Answer
Tom,

 ok , if it had been a late model GM i could have gave you alot better directions for the removal .. but i will give you the best tip i know and the one i use before any major/minor install .. find a Haynes repair manual you can buy one for about 10-15 bucks and in the body section it will break down the intire removal and reinstall of the audio system which includes the exact instructions and pictures of the door panel and speaker removal .. this is the best way if you want to make sure you dont harm any panels .. and i would rather spend a few bucks now than a lot later for new pieces .. ok after get the book the wire in is easy follow the new speakers diagram , the best place for prices is etronics.com that is where i order all mine from .. now about the loose wires .. i would assume since he has them taped up that the power is connected along with the RCA cables so i would leave those put just make sure they are secure and taped good incase you want to upgrade to an amp and subwoofer later down the road .. i hope this helps you out if you need anything else let me know

thanks