The origin of these wires seemed to be coming from under the power supply. I started by removing a handful of philips and tamper proof torx screws from the bottom of the console, then flipping the console over and lifting the top cover off to expose its fan and wires, one of which is the PWM, the other two being GND and +12V.

I dissasembled the Playstation 3 to reach internal fan and PWM connector. Procedure Analyzing PWM signal from Playstaion

This communication will be done over a Arduino Ethernet Shield. From here the Arduino will either pass the original duty cycle of the signal onto the external fan unaffected or if requested by the user the signal can be modified, effectively changing the speed of the external fan. The cable carrying the second output will be routed oustide the Playstation and will be read in by the Arduino. Then using one of the outputs to drive the internal fan, leaving the original Playstation 3 cooling unaffected. My goal is to use a Y splitter cable to split the PWM signal coming from the inside the console. Use the pulse width modulation signal(PWM) generated by the Playstation 3 for it's internal fan in conjuntction with an Arduino Mega to control an external fan that circulates air inside the enclosed space, for the ultimate goal of significantly reducing or completely elimnating overheating. Playstation 3 is suffering from overheating due to it being stored in a small, enclosed space.

Ps3 serial number barred off