I am getting ready to install the factory fog light wiring harness in my 05 MCS. I have the factory instructions and although I am rather new to working on cars, I am sure I can do this. I will be trying to connect to an after market set of fogs (with halos). Aside from the separate wiring to the halos, I believe the only wires going to the lights themselves are the power and ground. Is there any advise you can give or concerns I should watch out for while trying this procedure? Thanks so much for your help!