r u getting HID's or not... yes you need a separate switch...im not trying to be a Dick but if you use the search tool you will find out a lot of information.. thats what i did and im glad b/c i learned alot of cool stuff that i didnt know and if someone just told me the answer i would never know what i do today... honestly from the time it takes you to research it and the time it takes someone to respond to a thread your better off doing a search... but if you still have ??? PM me...