Arduino Micro with Talon SR

[Rman1923]

Hey all, (This is not for our robot but for a personal project)

So I am trying to connect a Talon SR to an Arduino Micro (With the Leonardo Processor) to power a Mini-Cim. I think I have all the electrical down but I'm not sure how to connect the PWM from the talon to the Arduino. My guess is that I cut the pos and neg wires on the PWM and just connect the white wire (since I already have 12 volts going through the talon). If this isn't how to do it, where should I connect the pos and neg terminal to on the Arduino (or in my circuit)?

Thanks!