I installed the SP9100 system to run my accessories (or future accessories)… I had the SPOD on my Jeep and it was great, but after a lot of research I felt the SP9100 was better for me. The base mounts under the hood, I just made a bracket and it’s solid. Takes up very little room; power, ground and ready to roll. You just mount your accessories directly to the 9100 wires which correlate to switches on the control head. The control head is very small. That‘s the only wiring that goes through the firewall. I like a clean look so I got the 9100 universal mount and mounted the controller top left dash next to the vent. That dash trim comes off fairly easily and has room behind it (dead space) for the bolts and cables for a clean finish.