wheelliftnpony

I know there are probably threads on here about this, but I gave up after searching for about 5 minutes.

I acquired some 98 tail lights for my 94. I'm using the factory 94 harness so the amber lenses are empty and my signal is still on the brake bulb. It's functional, but bothers me. Lol.

I was given a wiring harness off an Ls1 Trans am.
Is it the same as a Camaro harness? If so do I even need to use it? I thought I saw somewhere that it's not necessary.

Any input is appreciated!