See Figure 1. The FLHRSE3 has an accessory switch located on the left side triple clamp shroud.
See Figure 2. There is an accessory connector located under the seat that can be activated with the ACC switch. See a Harley-Davidson dealer for possible uses.
NOTICE
It is possible to overload the vehicle's charging system by adding too many electrical accessories. If the combined electrical accessories operating at any one time consume more electrical current than the vehicle's charging system can produce, the electrical consumption can discharge the battery and cause damage to the vehicle's electrical system. (00211d)
Figure 1. Accessory Switch
Figure 2. Accessory Connector