I just acquired a 2017 RGU and would like to make some improvements to the sound system. I am not familiar with the new audio system used in Rushmore bikes as my last Harley was a 2013. I used a Biketronics system in my old bike. I've been reading old threads to learn about the new system. If there are other sources I would appreciate any information. I would like to put Biketronic speakers in the front and if possible add speakers to the lowers like my last ride. The lowers seem to be used for the cooling system. Just looking for information and advice.