Just installed a new Vac tank. Took pb booster, steering column, front engine wire harness and dashboard off to get room to get it in. Without the dash back in, the headlight switch grounded, all fuses intact, no broken wires on the harness I can't get the parking lights or the dashboard lights to come on, even when I run a ground to the dash lights. Does the dashboard have to be completely hooked up ? What am I missing? No I'm not frustrated enough to sell the 1970 Convertible. HELP.