I have forgot what all the buttons on the handlebars do. I can figure out volume and source but not sure which toggle does the track switching. The bike is an 03 Roadglide and the labels on my buttons are worn off. Could anyone help out? Its weird but after one winter of it sitting in the garage I"m totally confused now. Any help would be appreciated. Thanks in advance.

 

Volume on left toggle, Track/station up/down & source on right outside toggle. Cruise on right inside toggle. Should be in the owners & service manuals?? But I think ya can program the PAC unit anyway ya want??