1977 Lincoln Continental Radio connections

[1966 Calais]

1977 Lincoln Continental Town Car four door, has a Qudrasonic stereo radio 8 track player original  model # Motorola 5LN4805. all wires were cut to install a modern radion in glove box. In process or reconnecting original radio in car. Need to know pig tail wire colors. MY QUUESTION is : on the male plug is a blue wire with a red tracer and a black wire. Which color wires do they connect with on the female plug? 

 

The speaker wires all match up this would be power and ground I believe. Diagrams or pictures would be very helpful.

 

Thank you Bob