Do you have a question about the Ssl SX210 and is the answer not in the manual?
Connect the positive battery terminal with an inline 3A fuse.
Connect to a clean, solid chassis ground point.
Terminals for power, remote turn-on, and ground connections.
Troubleshooting steps when the unit fails to power on.
Troubleshooting steps for low audio output levels.
Troubleshooting steps for excessive noise in audio.