As the title states, I have 3 head units left over from my old cars.
*1st one is an older pioneer works fine knob is kind of worn but works great has aux imput in rear.
-$25
*2nd is a newer pioneer unit with aux and usb ports in the front. Amazing unit, compared to brand new pioneer units, they dont make them like this anymore.
-$75
*3rd is an oem acura rsx base model cd player, security code is stickered on top of it. Works fine.
-$45
lol