Yes, if you wire the popper per Tone's instructions you do tap into a wire in the passenger side door sill from the pin switch that you install. I believe that wire is the one that turns the dome light on when the passenger door is open. This allows the dome light to come on when the rear door is open too. I can't quite remember how it's wired, but because of this the little indicator light on the factory switch does come on no matter what door is open, and since that happens the switch cancels itself out and doesn't allow you to pop the rear door open. So if you open your drivers side door to hit the tail gate release switch it won't activate the popper because the indicator light on the switch will be on due to the fact that your drivers side door is open. I had to disconnect the wire that I had run from the pin switch to the indicator light in order to get the switch to activate the popper when any of the doors were open. I have yet to install a second, dedicated, pin switch to wire to the indicator light to get it to work if the rear door is open.