i cant seem to find a write up on the 2000+ plus bvilles and was wondering is it as simple as opening them up and removing the yellow?

Does this help? https://www.gmforum.com/t277442/

Are you looking for headlights or taillights?

headlights

those are about the same process as the tails just dont have to worry about delaming on the headlights the amber comes out the same way

Moved to Detailing and Appearance. Please keep the Mechanical Sections for specifically Mechanical posts. We find that orderly posting really helps the GearHeads who know the Proper Sections help, and makes the Site search engine more efficient,
John~Venom~Senior Admins

Thanks John, I didn't even look where it was, my bad