American Hard Bag WH-RFBYP Factory Amplifier Bypass Compatible with Rockford Fosgate for Harley Davidson Motorcycles Until now, removing a factory amplifier required lots of rewiring. Removing the factory amplifier disconnects the speakers from the radio. This harness loops the speaker signal from the radio back out to the speaker locations, bypassing the amplifier entirely. Front radio outputs are routed directly to the saddlebag speaker pod plugs. The factory saddlebag plugs can be kept in play and there is no need for aftermarket speaker lines to be run from front to back on the bike. Easy installation. Unplug the factory amplifier and plug this harness in, and you are done. Made in the USA and built to last. This harness loops the amplifier input circuits to the amplifier output circuits when removing a factory Fosgate amplifier from your Harley. The factory saddlebag plugs can be kept in play and there is no need for aftermarket speaker lines to be run from front to back on the bike.