6Ch Backbone Harness for Saddlebags HDBB6CH – 6-Channel Backbone Harness for Harley-Davidson® Saddlebags The HDBB6CH 6-Channel Backbone Harness from Diamond Audio is the essential upgrade for expanding your Harley-Davidson® saddlebag audio system. Designed for riders installing more than one set of speakers per saddlebag, this harness replaces the standard 2-channel harness included with most lid kits and enables clean, reliable power and signal distribution to up to three speakers per saddlebag
