I have the Poulan XT Riding Mower that came without the factory headlights. I bought a Farm/ATV headlight from my local Auto Zone store. It has a positive wire and a ground wire off of the light. How would I go about hooking this up to my mower without running it straight to the positive and negative terminals on the battery. My mower does not have the factory headlight on/off switch. I basically want to make it work only when I have the key turned over to on? can anybody help me with the wiring on this? thanks.