Ok this is boggling my brain now

When I turn my blower motor on 2,3 or 4 it shuts off my DIC, headlights and HUD, but if I have it on 1 or 5 it just dims my DIC a little bit... But now my blower doesn't turn on at all, it still does the same thing it did when I turn it to 2 3 4 but I don't have any air blowing... Checked fuses and they're all good... Should I just do the dim HUD fix or is it something other than that?? My HUD isn't dim, it dims a little bit when I turn the blower on but it's still visible... thanks for all replies in advance

blower motor resistor, i'd say it could be that.

Thanks man, I'm hoping it's that... Could it be the ground is corroded somewhere and it's not able to pull enough electricity to light everything up and run my blower?