This is a 1973 Model that would be correct for 73 on. In late 74/75 they went to 6 button. Cleaned tested, ready to install. Includes locking bars, speaker plugs, Porsche style knobs. You need power,ground and a back strap, has optional electric antenna power port. Drop in DIN fit. $399 shipped. Stupid prices on Ebay.
Contact me for payment.