Hi my husband and I bought our first RV in march 2021. We've been having a lot of fun learning about it and fixing it. Usually one can find solutions for their issues. Our RV is a 1989 Chevy pace arrow on a p30 chassis, our headlights went out at the same time out horn quit working. All of our wires are fine, replaced the horn relay (still does not work) replace all headlights (still nothing). We cant seem to find the headlights fuse. Any advice on how to find the problem would be greatly appreciated! Thank you all! God bless, wishing a happy and safe holiday season to all!