Dome Light on My Rearview Mirrors Doesn't Work - Help

Hey guys, I have a 2008 9th gen corolla le and the dome light on my rear view mirrors don't work.

I replaced OEM with LED and it worked for a while then stopped. When I replaced the OEM's back, it lights but SUPER dim.

It isn't the bulbs because they work fine elsewhere, both the OEM and LED's.

It isn't the fuse because it appears to be fine and everything else the fuse covers works.

I've tried changing the rearview mirror itself and nothing.

Could it be some sort of wiring? I can't figure it out and it has been inconvenient to say the least.

Any insight? Thanks in advanced.