I ordered this amp from Crutchfield and have to say I'm thoroughly impressed! I bought both radio wire harnesses to avoid splicing and it went in very smooth. To set up, you plug in the mic and place it on the top of the headrest, play the pink noise generator from the Kicker website (I did it via my phone / bluetooth), turn up the radio and get out of the car. It ran through a series of beeps and tones to each speaker, played the pink noise, and within 3 minutes it was done (plays a "happy tone"). Adjust the two gains on the amp and you're done. For anyone wanting to keep the factory radio look, but add power and fix the terrible EQ, I highly recommend this amp! I have Alpine components in the front and Rockfords in the rear doors (have not replaced the tailgate speakers). I don't have a sub, but there's plenty of tight low end from the fronts now. I didn't want it loud, just tuned, and the amp does it incredibly well. Note: I did the Party Mode Mod a while ago, so this EQ was factored into the tuning.