Graphic Equalizer

The optional graphic equalizer (available on Probe only) gives you expanded and more precise control of the tonal response of your audio system.  Each of the seven bands of adjustment control a discrete portion of the audio frequency range.  This greater flexibility enables you to tailor the sound to your taste.

Simply put....these were cool.  Available only in the Probe from 1993 until 1995, they were a rare option but worth it if you have one.  These were only available in premium sound equipped vehicles.