The HDSWC1 handle bar control interface allows you to connect an aftermarket stereo to your Harley-Davidson while keeping the full functionality of your factory handle bar controls. The HDSWC1 works with three different Harley-Davidson models FLHX (Street Glide) 2006-Up FLTR (Road Glide) 1998-Up FLHT (Electra Glide) 1998-Up Please refer to the user manual provided below.