69 Valiant Radio Help

The Kenwood KDC-MP522 manual says the yellow radio wire is for the battery and goes directly to the fuse box. The red wire is the ignition wire and goes to the acc connection of a car's ignition, then the fuse box. It says that if a car is not equiped with an acc position(my car obviously), to connect the red wire to a power source that can be turned on and off with the key.

I tried matching the red wires in both the radio and car, but still no power. When I connected the red dash wire to the yellow battery wire from my radio, I got sparks when the ground wire directly contacted the door hinge. So I'm guessing that red-dash/yellow-radio is the right power connection. What power source should I connect the red wire of my radio harness to that will only supply power when the key is forward? I was thinking the wiper motor or something. I think this is the problem because of the lack of an acc position on my ignition switch. I think the red wire needs to be connected in order to complete the circuit. I checked the fuse in the radio and it's fine. Once again, thanks for your replies. I know I'm real close here.