Has blue tooth, I have a 32 GB I pod that you can control from the head yjay stores inside of the unit, great unit. Also it has a USB port on the front which I can use to charge things etc. I have whatever is the top Boston acoustics 2 way speakers. I did not want to hack up my doors or obsrtuct my ventilation system and I did want to maintain the stock look as much as possible. I have a 400 Watt Alpine digital amp in tray area behind the seats. I think if you have no amp having a head that compensates wont do you much good because it wont sound good if you turn up as loud as you would want it. Even mine really needs a subwoofer becuse I cant turn it up loud enough with the top (and windows) down without taking all the bass out. With the windows up it is pretty good.