Stereo Control or Fader switch

[CudaJon]

Hello!

I took my FM/AM radio and the crossover unit out of my 73 Cuda. The wiring looked a little funky and the rear speakers were never hooked up. I have 3 speakers up front so 5 speakers all together.  I don't have a fader switch or a stereo control switch according to the 72 service manual page 8-156 but would like to purchase the dual pot which is the switch?   Does anyone have the correct ohms for both pots?  I think I can figure out the wiring but any additional information would be great. Basically a schematic of the pot - is it also a switch meaning you push in to turn it on. Sorry for all the quesitons.

Thanks!!!