I installed the rumble road amplified speaker system from M H Instruments on my RKC and have been pleased with the results and the looks. I noticed that they sell an inexpensive foam liner to put in the pods to cut down on resonence and to to add additional protection to the speakers. Just wondering if anyone has tried this and does it help the sound. Side note...harley sells chrometrim rings with the bar and shield for their factory speakers...they fit the rumble road speakers perfectly and make them look like an OE set up.....thanks for the help

Randy