CanAm Defender | 2018-2026 HD10 & 2026 HD11 | Plug-&-Play 4-Speaker Overhead Sound Bar w/MRB4 BluetoothINCLUDED SOURCE UNIT SSV WORKS MRB4 Built in. The SSV MRB4 marine radio comes included as the command center for this kit, powering the four speakers right out of the box. You get Bluetooth streaming, USB input, and simple controls built for the elements, so you can plug it in, pair your phone, and turn it up. Front and Rear camera compatible ACOUSTIC PRECISION A6 Signature Clarity. The A6 powersports speaker is tuned for open air riding where wind