Understand that. The entire reason for putting the reducer where I suggest is heat. GM put 10 watt resistors in because they did it for 6 volts all the way through. When putting a 12v power source on it, those resistors will be twice as hot give or take. As I learned during the bench tests, the difference is about 100 degrees. The resistors (which looks like one, but its two), run about 230 degrees putting the reducer where I suggest, and 330 or so if you don't. Its far too high of temperature for them to survive. I am working on a two 25 watt resistor solution that will make it much less of a concern where you put the reducer.