blumule
Member
I’m installing a amp using line level inputs instead of rca inputs because of factory stereo. The Amp is a 5 channel so I can power both front and both rear speakers plus a sub in the trunk.amp comes with 3 separate speaker wire harnesses for each channel.each harness has 5 wires.two wires each for positive and negative and a third black wire I’m assuming is a ground wire.amp manual doesn’t indicate what the wire is for. Should I tie it in to the negative side of each speaker or run it to chassis ground where amp is grounded?