Success!
OK here we go. Very special thanks to JA for assisting me (via PM) with this.
For this mod I went with a factory parking sensor switch from the FJ or any Toyota that uses it. Think it was like 70 bucks or so. I like the stock look.
I never took pics for a write-up but this mod is super simple and I will just list exactly what I did per JA's instructions.
1) Cut the red/yellow navigation wire located
here.
2) Buy switch, extra wire, taps etc... I bought Posi-locks and Posi-taps. Very clean and easy to use.
3) Lengthen and attach both ends of the red/yellow navigation wire you just cut to your switch you bought. Attach the cut end of the nav wire that is closest to the navigation unit side into pin #30 of your switch. Attach the cut end of the nav wire that is closest to vehicle side into pin #87a.
Next, from you switch you bought, run wires from pin #87 and pin #85 to a 12V+ source. I used that accessory harness that is unused floating around in the console near the shifter. Think its for the cigarette lighter accessory package. Nevertheless, tap into an ignition/accessory source (rather than constant) so it will power up when the vehicle is on/accessory mode.
Next, from your switch, run a wire from pin #86 to your ground connection on your activation switch/button. Pin 3 on my toyota switch is ground.
Those 2 red wires you see are from pin #87 and #85 from the switch. They tap into the pink/blue stripe wire from that accessory harness which is 12V+.
The black wire you see is from pin #86 and runs to the 3rd pin of my button/switch ground.
Next, on my button/switch, the first 2 pins 1 and 2 are only for the illumination circuit which allows for the light bulb to be activated when pressed. JA gave me the brilliant idea of just tapping into the same pin wires from an adjacent switch (hill decent control button).
Lastly, pin 6 on my button/switch I tapped into that cigarette accessory harness I was referring to earlier. I tapped a white with black stripe wire which I believe is a 12V+ source.
Thats it! Simple as that. This is not a formal write-up just a simple "let me show you what i did" kind of thing. Let me know if you have any question about what I did. I have a medical background so don't expect me to answer any complex electrical questions.
I use this mod mainly for switching lanes and eliminating blind spots. It is pretty incredible in traffic. Its also good for staring at people behind your Runner.
Special thanks to JA for holding my hand!