I recently installed a power inverter in my F150 and wanted to share my installation methods with the community. The reason I chose to document the process was because of several threads I've come across where the installation methods used were dangerous or sloppy. I'm going to show you the "correct" way to install a hidden power inverter.
The first thing you need to know is what gauge wire you need. I've seen several threads on here (and other forums) where insufficient wiring is used to supply power to the inverter. Then they run the 12 AWG to an inline switch (which is probably a 10A switch) and back to the inverter. OUCH! Please don't do this, there is a better way (rather a few better ways).
Step 1 - Open your installation manual. If you are installing a 300W Pure Sine Wave Inverter, I would HIGHLY RECOMMEND going with 8 gauge wire. 10 AWG should be sufficient, but 8 is better. I have seen multiple threads where guys are using 12 gauge wire for 300W and 400W applications. This is asking for trouble. Now that you know which wires to purchase, decide where you want to install your inverter as well as your toggle switch and any outlets you may want to install. Map these locations out and purchase sufficient supplies for the job. (Note: The closer you put your inverter to the battery the better).
Step 2 - Route your wires: I chose to route my power lead under the truck and through the floorboard. I cut holes in the grommets pictured below to run my wires through the floor and into the center console. You can also punch through the firewall on the driver side on these 97-03s, but I preferred this route for my application.
I installed an expedition console in my F150. One of the best advantages of this mod is that it gives you a place to hide your toys. I purchased this 300W Pure Sine Wave from eBay for ~$100.
This inverter fits perfectly inside the back of the center console.
The ideal location for the inverter would be under the forward most portion of the console as that is closest to the battery and provides the most airflow. If you don't have the center console mod, I would encourage you to get one. If you don't want one, no worries, you can install your inverter anywhere you choose (I would probalby put it under the passenger seat if I didn't have a console.) Wherever you choose to install your inverter, be sure to secure it. A loose Inverter is a fire waiting to happen.
Next you need to choose a location to run your ground wire. The shorter the distance the better. If you are running the ground wire more than a foot or two, I would suggest twisting your ground wire and power lead around each other as this will cut down on interference from the inverter.
Now that we know where to install our inverter and how to route our wires, the next step is to PROPERLY
install a toggle switch for the inverter...