You can connect it direct to the battery but it will always be powered. You would have to install an on off switch to the volt meter. You can wire the hot lead to any wire powered with the key on and run the ground wire to the frame.I want to connect a volt meter. How does this work? Has the volt meter two wires? Can I connect them to the + and - of the battery? I don't know much about electrics (only the basics).
The red wire needs to attach to a "Switched" Power connection.So when I understand it correctly:
Red wire connect to a wire that has power and the black wire to the frame of my bike? Do you have a suggestion for the red wire?