Having big problem's with the light's dash and headlight's on my prject car . The car is a 76 Nova . The car has been torn down exlusively . Frame sandblasted and painted I have it almost all put back together , but the electrical is really a pain in the butt.Is there a practical approach to this . I really need help !!!! I believe that the ground wire's are all unatached this is my first step I think????