midTnMike

I have a 2016 Sierra and I noticed my microphone quit working when connected to with my phone. Not sure if it happened at the same time but I also noticed my OnStar, navigation, and compass are also not working. I found several threads on here and everyone says it's the shark fin. I replaced the shark fin today and nothing changed. I did not notice any traces of water in the headline. I checked all the fuses and disconnected the battery for an hour. Any suggestions where I should look next?

Like my title says, my auto headlights do not turn on when it starts to get dark out. If I manually turn them on and return the switch back to auto they will stay on. Anyone else had this issue? Not sure if I should looking to replace switch, sensor, or something else. One more more simple question. I just bought the truck so just trying to figure it out. Does the headlight switch have a light on selector like the 4x4 switch or just the white marker? I find it weird the 4x4 switch has a yellow marker light when lights are on but the headlamp switch does not.