Where can I get a copy of the Mustang GT Quick Start Guide? You can download a copy right here! Mustang GT Quick Start Guide 7710104000 REV D.pdf 4 MB Download Related articles Where can I get the expanded manual for the Mustang GT amplifier? How do I update the firmware on a Mustang GT or Rumble digital amplifier? Are there foreign-language translations of the Mustang GT Expanded Owner’s Manual? What presets come with the Mustang™ GT and Tone app? How do I browse and download new Tone presets?