Hi all. I'm looking at upgrading the factory head and fog lights on my 2013 Cross Roads. I'm going to go with a JW Speaker Adaptive 2 headlight, and also want to go LED fog lights. What size fog lights would I need to get to still use the factory housing, if possible, or would I have to replace the entire fog light assembly and wiring? Also would I need to put any type of resistor in line in order to account for the lower draw of the LEDs, or would that be built into the lights themselves?