Optional 2000 series Radio plus accessory equalizer for all 1990-1993 Honda CRX's. Item has been fully tested and works great! Its also period correct for all Honda's 1988-1991 CRX's or Civic's. Will plug and play with most all Hondas/Acuras from 1986-1997. Display color is green and all knobs switches and controls are fully functional. Cassette deck was not tested so we don't know if that works or not. The bottom row of the EQ buttons light up green! Missing small treble Bass knob Still works without it and can hardly notice it. These are very very rare nowadays don't miss out!