Hi just introducing myself I'm Tom I live in the buffalo area of new york i have a 69 1/2 roadrunner that i've owned for about 15 yrs its far from stock lol its tubbed with a 4 link and ford 9" rear diff i have done alot to it i recently converted it to power disk brakes and power steering im in the process of repainting it and am also going to put the vinyl top back on for this paint job. I also just got an uncut dash wiring harness and an original standard speedometer cluster that I'm installing now I never had the original cluster and always had just aftermarket gauges and my harness was cut up bad and half missing i made what harness i needed myself and have a couple questions about the new stuff.. not sure if this is where i can ask or not but my first question is the ignition switch which i never had either i found the parts store had a 68 switch in stock for $20 but no one has one for 69 except eBay and their allot more expensive i bought the one for the 68 and it will plug in only the ground terminal on the switch is not used and the diameter is smaller.does any one know if it will work and do the job if i can mount it? are the wires in the correct spots on the plug? would i have to run a ground to the switch or just leave the terminal unused? i also have a wiring diagram and there's a couple wires in the harness i cant find in the diagram to see where they go. mainly the 3 wire plug that wires from my map light also go to. i think its for the light delay timer but its not in the diagram all there is what they're calling a lights on warning buzzer but the wire colors don't match and i cant find the 3 wire plug that's in the diagram on my harness any help with this would be awsome and greatly appreciated thanks