67 Barracuda dash wireing

Well it is multiple problems. dash light, high beam and signal are working now. found light switch and plug with corrosion on pins. cleaned up and fixed that part. then unplugged everything I get my hands on and checked and reseated.
Appears there must of been some dampness got in there a couple times over last 50 yrs. lol.
Move on to gas gage tomorrow. since I have dash out anything I can test from here?
Thanks for all your input