|5||GND (signal)||Green & Shield wire|
|6||ON||Connect to pin 7|
|8||GND (amp)||Yellow & Blue|
If the switch does not work, try to change connection between pin 7 and 1. The amplifier should turn on when there is +5V at pin 6.
Subwoofer amplifier is turned on with the sattelites, there is no separate circuit for turning the subwoofer on.
Hope this will help. Have fun and don't fry something. ^ ^