Gogo, take a look under your fenders, just below the yellow flashers. There might be a yellow (?) wire (one per side) that just ends in a female bullet terminal- nothing plugged into it. When you tractor's key is turned on, or the tractor is running, there should be 12v at that terminal- nothing when the tractor is off. At least that has been what I found on my three Kubotas. In the fuse block, there is a fuse marked "work lights" or something like that, which is the circuit for the rear lights. Could be used for front lights, just as well, of course, depending. It is not a switched circuit- if the tractor is "on" the circuit is hot. You will want to switch it, I think. You will need a simple voltmeter to trace this stuff properly. When you get some lights, the red wire hooks up to the 12V positive power supply, the black wire to ground, which could be about anything on the tractor's frame/ metal fenders, etc. since they all are mechanically fastened together. I have simply put a ring terminal under a fender bolt head, and that works for ground.