Mustang GT + Fender Tone Support has a new home! Click here or go to https://www.fender.com/tone/support to visit our new support home. Related articles I'm having trouble using the Tone app to connect my Mustang GT amp to my WiFi internet connection Fender® Guitar Amplifier Owner's Manuals (Current) Fender® Guitar Amplifier Owner's Manuals (Archive) What is Fender Connect? Fender® FUSE™ “No Amp Connected” Troubleshooting Guide (Win)