Changing signal lights and parking lamp bulbs

[Nuikala]

Hey everyone.
Im new to the forum.
I live in Ontario, Canada, and its cold here.
I just bought a 99 Tahoe. Its loaded with leather and power options, heated seats, 4x4.
Its really cold outside and snowy and I need to change the signal light in the front and the parking light too.
How do i get at the bulbs? Dumd question, i know. I dont see how to accesss them easily. DO i have to remove the whole grille and everything?
I did a brake job and tie rods yesterday in -15 and snowing. Tomorrow i get to do an Oil Filter Adapter housing seal and gasket. and the light bulbs hopefully.
Any help would be great, thanx

 

[SunlitComet]

unscrew four screws around parking lamp enclosure and pull it out to get to the bulbs. for the side marker jet look inside the opening you just made and follow the wires to the marker lamp