Outer Limits 4x4 Board

i am tryin to hook up a set of reverse lights,

i played around with it on sat, but as far as i can see, they are negativly switched, is this correct,

if so, how do i hook up a relay for them?

thanks,
Shawn

Still hook them up the same way, the relay isn't polarity choosy, on the switching side.

Just wire it up like you would for any relay just run the power to turn the relay on from the positive that runs to your reversing lights