Wunderlich - On-Board Socket for BMW R nineT (2017-)Unfortunately, R nineT models no longer come with an on board socket as standard since the start of the Euro 5 norm. These have to come with a USB socket. When you install our on board socket, you can e. g. carry on charging or powering navigation systems or other end devices with motorcycle power cables (DIN plug) as normal. This on board socket also lets you comfortable charge the motorcycle battery with our Canbus enabled charger. The on board