Had previously installed my bikecam and USB power port at a bike shop. What the mechanic did was to hard wire the bikecam and USB outlet to a “Ignition ON” wire on the bike. No fuse. When I asked him what if one of these cheapo made-in-China stuff short circuits? He told me that the main fuse will blow lor.
I never liked the idea of blowing the vehicle’s fuse with these “add-on” stuff. Because, the quality of these stuff are sometimes questionable, and blowing the fuse will leave you stranded.
I’d much rather have a separate circuit with its own fuse to support these aftermarket electronic add ons. So, I headed to the drawing board and came up with this…
Edit: Subsequently repalced the 30A fuse with a 10A, and the 20A fuse with a 5A one instead.