No the connector is the same but the pinout is different. The Z506 has a single line volume control (e.g. just a pot for feedback). I haven't figured it out yet. If anyone has the control speaker and can trace the signals that would be a big help!
Not sure if you still needed this information.
Pin 1: Brown, Headphone jack ring terminal
Pin 2: Orange, On/Off button
Pin 3: Green, Going through a 10k resistor towards the headphone jack circuit, not sure what for
Pin 4: Purple, Headphone jack sleeve terminal and ground for potentiometer
Pin 5: Blue, Potentiometer
Pin 6: Red, Headphone jack tip terminal
Pin 7: Yellow, On/Off button
Pin 8: Grey, Speaker Negative (-)
Pin 9: White, tied to black wire, Speaker Positive (+)
Note that it's a dual pot on board. Tried to upload an image, but was unsuccessful. Hope this helps with your issue.
Unfortunately my issue is that the left/right speakers are now super quiet and have to be turned up all the way to hear anything, so I will have to troubleshoot that issue.