77 Maverick, 2 dr, since I got her the Dash IP lights have been dim.....I was drining home the other night from the local Casino (no, I didn't win) and hit a little bump in the road and the dash lights (IP) came on a little brighter....I thought that was good. Then they went dim....so when I tapped the IP glass (plastic) to see if I can "re-create" the bump action....I lost everything...drove home in the dark...any way I know I either have to replace the "dimmer" light (headlight) switch or I may simply have a bad ground somewhere, whatever.....any suggestions before I start on removing the Dash / IP to see inside....appreciate it, later.