At the time of purchase my car had its stock AM/FM/Cassette player with digital graphic equalizer, stock 6 speaker system with its own amp. I have kept the stereo as original as i can because the deck itself is awesome, so i purchased a JVC 12 disc CD changer with remote control, i also have installed two 12" JL audio subs in two truck speaker boxes(only temporary until i have one custom built) powered by a cheap 300Watt Jenson amp. Old subs and amp came out of my POS Honda Accord so havn't upgraded yet. Plan on installing new speakers throughout the inside of the car.