19" Rack Mount Cooling Fan System

I bought this unit in July of 2017 for my rack mount stereo system. 2 years in, one of the motors started making a horrible racket like the hearing was bad in it. Once it warmed up, it quieted down, so I let it go until recently when I moved, and had it apart and decided to open it up and replace the bad motor. Think you can just buy a 12 volt 2 pin 92mm fan motor and replace it? Nope. The output voltage to these motors is 3 volts. That's right, it's a 3 volt motor.The claim that it is a "smart system" and it adjusts the fan speed according to temperature? BS. Thinking the voltage was just low because it was cool in my house, I decided to do an experiment. I put the I it in front of my heat vent and brought it up to where the temp display said it was 108 degrees. Guess what? Still got 3 volts at the output on all 4 plugs. Instead of God forbid making it a 12 volt output so you can just get a standard replacement motor, they had to make it their own specs so you can't just replace the fan motors. The motors are obviously specially made specifically to Pyle's specs so they are proprietary to this unit and whatever other product(s) they put these motors in. Which explains why the other guy's motor failed within a year of him replacing it that he wrote about on another review, because he likely used a 12 volt motor not knowing the power supply in this unit has a 3 volt output.Think I'm just going to ditch all 4 fans and the factory power supply and keep the frame and install 4 new 12 volt fans and make my own power supply.