Tail lights odometer out fuse blows

I replced a tail light andcnoticed platic was melted. After changing odometer lights were out. Couple of weeks later my tail lights went out. Every time I change fuse it immediately blows it. Not sure if tail light and odometer are related. Does odometrr lights have a fuse? Im up for inspection and need to fix quickly. Not sure if related but 2 years ago my cig lighter went out and fuse blows immediately when I replace. Tail lights are most important. Wheredo I begin? Help!! Chevy dealership said $80 hr for labor. Dontvwant to go that way.

Kinda disappointed when i got no reply but figured id let ya know what the problem was for those who may have similiar problem. It seems when bulbs were replaced the prongs were push together which led to blowing the fuse and no odometer lights. After 3 monthes of not being able to drive at night the problem had a simple solution.

That happends when you push to hard on the tail light bulbs to be inserted