Help! Using Garageband with PreSonus AudioBox

I’ve just got a PreSonus AudioBox iOne that I want to use to hook up my electric guitar to record on Garageband on my MacBook Pro.

The AudioBox is hooked up to the USB port. All lights are on.

In MacBook Preferences, the AudioBox is selected as the sound input and output device.

In Garageband Preferences, the AudioBox is selected as the sound input and output device.

I hit record on Garageband. I can hear my guitar through the headphones hooked into the AudioBox.

Garageband doesn’t seem to be getting any sound from the AudioBox. There is no response, no sound levels, either during recording or during playback.

The little slider on the “Clean Combo” Guitar track is turned all the way to the right. I’ve tried pressing and undressing the mute/unmute button.

The little slider to the left of the metronome at the bottom of Garageband is all the way to the right.

Help! What am I missing?

The key is that you can’t use the “guitar” track that GarageBand automatically creates for you when you create the project. You have to create a new track, and then choose “Electric Guitar” and then choose “Mono Channel 2” in order to use the “Inst 2” input on the AudioBox (“Mono Channel 1” is for the microphone).