Greetings, I purchased a new Kona yesterday. I want to install a simple powered 8 inch alpine subwoofer, under a seat or in the back. After searching these forums as well as Google, I cannot find a wiring diagram or any specific wiring harness / adapter that I could get my RCA red and white audio output from, or the left and right speaker wires that I could splice into for the subwoofer. Does anyone know 1. How to remove the factory head unit. 2. Where to find a wiring harness to plug into it that I can then attach to my speaker inputs or the rca inputs on an amp / powered subwoofer. Or 3. Just simply how to install an amp in a Kona? I've done this on many cars but nothing this new or fancy, I also have a reverse camera and don't want to mess up any wiring. Thanks!