Built the ultimate front fairing only system on my Stratoliner but can work for multiple bikes (I use all space in my bags). 1 pr Rockford Fosgate T1650 (6.5" speakers) and a T400x2AD mini amp (new rail boost technology has the most output and super efficient) They fit perfectly in the fairing and amp under fairing. Settings at 80hz HP (high pass) with a rockford Fosgate RFBTRCA Bluetooth adapter so you can connect your phone at will. The system sounds amazing and is insane. Big volume, a lot of detail in the music and ready for more. If you want to add speakers in the bags add the T400x4AD (4 channel).... if you don't have a front fairing the Batwing fairing is aftermarket as well as many others on eBay. Any questions at all text me or PM me.