Well I’m about half way through the process and thought I would post what I have completed sense it is playable...lol.. I installed the Alpine MRV-M500 amplifier, LC2i, and a temporary 12” sub in a ProBox. I ran my power wire through the firewall by drilling a 1/2” hole and grommet. I ran the bass knob to a blank switch and had to take it out of its case as well as remove plastic on the blank. Next up is to build a fiberglass enclosure on the right side for either a 10” or 12” sub, but for now the old 12” in the ProBox will work.