Complete pioneer car stereo 4 units. CDX P610 6 disc player with manual KEH P5200 receiver EQ 5000 9 band passive equalizer with subwoofer control GM-X304 amplifier Worked great in my car. Bought a pick up and wanted to keep it for another car. Never purchased a car, have been driving a pick up. Would be to much stereo for me in a pick up.