i have a 2006 silverado. i am wanting to install led haw's in the low beams and foglights as show in the yellow circles in pics. i am looking for some tips and preferably pics of installs in same type housing. i know how to remove lights but do these have a inner and outer housing? in other words do i need to drill say a 1 and 1/2 inch hole in outer and 1 inch hole in inner to place led? i know ive seen pics of this type install but cant find em on here or on archive. also i am going with the soundoff universal undercovers. any ideas for placement in the housings? Thanks guys!