this is a much better option if you already have a usable head unit. Soundstream Harmony 8 Channel 31 Band Equalizer Car Digital Sound Processor DSP | eBayHello, in looking for a head unit with a 10 band equalizer, or 7 band parametric. I'm looking to pay around $150 for a DEH-80PRS or similar; let me know what you have and how much. Thanks!