HD14-SBSUB: Does the Motorcycle Need to be Re-Flashed?

No, but only if your Harley-Davidson factory radio was originally flashed when the aftermarket Rockford Fosgate TMS audio system was installed.  The radio should have been flashed with the TechnoResearch flash tool using the following setting:

 

• Radio Flash: Rockford Fosgate 2014+ All Bikes 

 

Your motorcycle does not need to be flashed when using this following equipment:

• Adding the HD14-SBSUB kit to an existing Rockford Fosgate aftermarket (TMS) audio kit.
• Using the PMX-HD14 aftermarket radio.  This radio inherently does not need to be flashed.