I'm sure this has been discussed here before. This is what I'd like to do on my 2010 R1200GS: Power a set of LED Photon Blasters from a switched power source in the area under the seat (Don't want to use the preferred park light wire in the front). Photon Blaster have ~0.2amps current draw. Wired to the green/blue wire of the diagnostic plug. It's working fine but I'm a bit worried about the central computer giving me problems long term. Alternativeley I could power a diode protected relay from the rear accessory port or the diagnostic plug > delayed off controlled by the bike central computer system in case of the accessory port. Relay current draw ~ 0.14amps Already connected a set of LED strips directly to the rear accessory port and when connecting the Photon Blasters to the same port the current draw exceeds the shut down limit and the plug stays powered on, not sure for how long (usually it shuts off after ~30s).