Fitting a wethaerproof cap to RIDER550 power lead

GrannyGrantham Registered Users Posts: 1
Apprentice Seeker
I have a 12V power lead fitted to my bike and I want to be able to blank it and keep the weather out when not using the sat nav as I actually ride without it and sometimes in wet weather too! Anyone know of any caps that will do the job or where to buy a blank plug (as on the sat nav powered mount)?