Dodge Infinity Radio Parts

I have an Infinity radio in my car and it has the little thingie to balance between front and back speakers as well as sides. It is a little stick operating 3 potentiometers it seems. Unfortunately, mine broke so I was wondering if anybody knows where I can get replacement. As far as I know it is not an Infinity radio but only branded by Chrysler/Dodge.
Anyway, any help would be appreciated helping me to find either a new part or a new circuit board to fix my problem. :)

For the price you would have to pay for the part or replacement circuit board and the time to take the radio out and open it up and fix it properly it would probably just be easier and cheaper to buy an aftermarket radio, wiring harness, and installation kit and go with that and then you would have push buttons to control everything instead of knobs.