'70 Dart from Canada

Soldered up some of the pins on the gauge cluster and added some ground wires for the lights today. Also found out from my co worker who is more familiar with mopars that the alternator gauge is actually an ammeter, needless to say I will be bypassing it when I put the gauge back in.

Would grounding the lights get them working because I've changed out every bulb, got a new instrument voltage reg, and changed out the fuses and yet couldnt get the darned lights tooo work......any suggestions?