I have a car amp (amplifier) .

This should point you in the right direction. http://www.caraudiohelp.com/how_to_install_a_car_amp/how_to_install_a_ car_amp.htm

If you need anymore help, come on over to www.soundsolutionsaudio.com and go to the forum.

I help run this and many other forums on the net in terms of experienced advise all the way up to serious competition.

Basically you need to buy a amp kit a your local audio store . Then take the red wire hook I to the plus sign side (+) then run your wire to the positive post on your battery . Then take your black wire (ground) hook into the negitive spot on your amp the take an ground it in your trunk to a a screw. Then take your blue wire (remote wire ) hook It to it's place on amp then run to your cd player an connect to it's remote wire spot . That's all that's needed other then your speakers. Good luck