pioneer ddj-sb3

Hello,

I had a numark dj controller and it worked good but I needed a better controller with more options and bought the ddj-sb3. But it is driving me crazy and I will explain why.

When I plug in the controller it has some serious constant humming,and it is very loud. Even when the controller is turned down it is still there. And there is also interference noise when different lights light up on the controller. 

My last controller did not have this problem but it did not have a internal sound card either. 

I have seen people saying to turn down the microphone sound on the back but this does nothing to fix the problem. I am using a cheap Aux to 3.5mm cable to hook the controller to a external speaker and to my desktop computer line in and get the same loud hum from each no matter which one I hook it up to. 

I am using my desktop computer with this controller I do not know if that information will help but just putting it out there. 

I really like this controller but the hum and weird noise when different lights light up on the controller are making this seem like a pos. 

Any help please,I have tried to read more on this online but nothing is helping,

Any help please,

Thank you for your time,

Robert