The inverter is disassembled and I made a custom harness. Pretty sure I used the big grommet under the dash then came around through the center console pieces. Only the wiring for the plugs and switch are run (in separate enclosed chases) the inverter is under the hood above the little tray at the back on the drivers side. I wrapped it in a shop-vac prefilter to keep gack out. Been running that way for 3 years now. (I haven't gotten it wet, I am sure a full submersion would do it in) Most of the other crap I built too.