Here are some ideas of where you might want to locate your AutoTuner and PCV. This is also an idea if you're interested in running a toggle switch for switching between a Base Map and having the AutoTuner trimming your map...
------------------------------
You will run two wires from your PCV to a SPST switch. Basically a simple open/close switch. Where you hook the wires into your PCV is shown in the installation instructions. Once you do that, you will go into the software and under the setup of the AutoTuner, you will toggle "on" the box that says you want to use a switch for the AutoTuner. At that point, when your switch is in the closed position, the AutoTuner will be working, when it's in the open position, your system will revert back to what ever base map you have loaded onto the PCV and won't produce trims any more. Switch it back to the closed position and you will be trimming w/the AutoTuner once again.
The over all wiring is VERY simple... just two wires as mentioned above. Below are some pictures of my install, turned out very clean.
Picture One (Where I tapped into power for the Auto Tuner... green wire for the license plate light - same place I tapped for my radar detector):
Picture Two (where I mounted the PCV. I Velcro'd it to the underside of the plastic right behind the seat... and position it to where the USB cable can plug right into the top w/out the need to move the PCV at all)
Picture Three: (Where I mounted the AutoTuner - under the seat area... seemed like a good spot that was out of the way but close enough to the PCV to still plug into it)
Picture Four: (Where I mounted the toggle switch - I used a small piece of double sided industrial strength tape and stuck the switch to the side of the rear of the cross member of the subframe - solid as a rock. It does fit under the rear cowl when that goes back on... just enough clearance for that style switch. I positioned it so that when the switch is to the right, it will remind me the Auto Tuner is on and trying to make my fueling "right"... (easier for me to remember... right = right fueling)... left = off):