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 Fender® Guitar Amplifier Owner's Manuals (Archive) Contact a Fender Gear Advisor I'm having trouble signing in, and I know my username and password are correct Fender® Guitar Amplifier Owner's Manuals (Current)