68 dart. how does the front turn signal parking lens get ground??

Can I ask you a question JeepJimmy? When you turn your head lights on, do your parking lights go out. Mine do, but I think the previous owners rewired some things in the fuse box and head light switch. Lots of burnt up spots in the fuse box. I think my 69 parking lights stayed on when the headlights were on and I would think the 68 would be wired the same. I didn't notice where the lights got their ground when I was working on them. Thanks.