OK, I think the isolator will work on top of the battery. Just need to make sure & protect it from getting to the positive post of the battery. The HD lights will plug in behind the stock tail light without cutting any wires. I think I will only use the HD lights as additional brakes lights and not as constant running lights. I think the extra lights coming on will be more eye catching, but I may change my mind eventually. I hoping to find a way to convert the HD lights to LED in time if I can find a way without breaking the bank.