Location of Solenoid for performance exhaust button

[392BB]

Does anyone know where the solenoid for the performance exhaust button is located? I searched the forums but didn't see any schematics or description of where it is located. My button doesn't change the exhaust note when pressed. Seems like a fairly common issue. The lines are clear, but I can't see where the end up in the front of the 392.
Would like to fix it if possible.

 

[baggerman27]

I posted this last July-Just had my performance/quiet exhaust switch quit working last week on my ‘22-392. Per the tech at the dealership, “removed gas tank. Removed exhaust bypass valve actuator, installed new revised actuator connector and new bypass valve. “ The part numbers involved were: 68547326AB-Hose Vacuum...

 

[392BB]

Ok thanks!
That sounds like a fun little project to fix.