connect a Y-cable to the card, one end to the cans and the other for measuring.
Anywhere where you can get to Ground and out is good actually. If you don't have a Y-cable you can sacrifice an extension cord. peel of the protective outer layer and carefully expose the three copper wires with some distance apart along the length of the wire so to avoid accidental shorts.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.