Good afternoon, We have a BOSS LS1630 Laser and bought an aftermarket chuck rotary axis attachment. When hooking it up, the motor vibrates. The connection is has a 4 hole female part same as our old rotary but the new motor came with 4 wires and our old has 3 wires. This is a link to the Amazon description. Is it possible that the wires are not connected in the proper format for our laser to recognize it? I haven't heard back from BOSS or the seller. I'm thinking that if its from China it could need rewiring.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Thank you