My expensive digital volt meters have turned up and im about to fit one of them in the dash (the amazing value £3.88 ones as from a previous thread). Just 2 quick (and maybe daft) questions. Im assuming i wire the positive direct off the battery or is there somewhere else i can run the positive from? If I'm fitting a switch for the meter(I'm only using it for the main battery), should I switch the positive or negative wire ? I was thinking the positive but won't that just fry the switch ??