Audio Wire Diagram. A stereo wiring diagram is a helpful guide for installing their stereo system and should include component placement and color codes for speaker wires. The rear view is the end you solder from here are the connections on each pin.
Free wiring diagrams for your car or truck. Car stereo wiring diagrams car. If the signal source is equipped with an output transformer.
The ground wire for the stereo will be black as will its corresponding wire from the car.
I would encourage you to keep trying out new combinations and stuff to see what works best for you. This is tricky to solder. Foil or braid screened cables tend to be good from a screening point of view whereas the type of cable that uses a bunch of unbraided wires wrapped around the outside is. An example of this is shown below.