1. Go to the Rockford Fosgate website: www.rockfordfosgate.com
2. Click on "Support" at the top of the page.
3. Under the "Product Support" section, select "Manuals & Downloads."
4. In the search bar, type in "RFX9020M" and click on the search icon.
5. You should now see the RFX9020M product page. Under the "Resources" section, you'll find the "Owner's Manual" available for download.
6. Click on the download link and save the user manual to your device.