you got a voltmeter to test the resistance of each wire? you're going to test if the wires aren't broken inside ~ continuity test
what else did you changed besides the wires? and was it running before you changed them?
old set still good? if so replace the old ones, one at a time... to rule out if you got bad wires from the box (if you don't have a voltmeter)
then return that set since they carry a lifetime warranty????