Car Electronics Wiring Diagram. Below is a simplified diagram showing connections to the vehicles pcm and battery. I dont know what that part is other than it is a small.
Fuel pump wiring for the red circuit is generally going to carry a much higher current than the relay. If you are not using a wiring harness clip adaptor you will need to identify the wires coming out of the stereo as well as those coming out of the car. Speaker basics and speaker wiring explained 1.
A wiring diagram gives a physical layout of the connection unlike the schematic diagram.
China see more product details. Certain chrysler charging systems for example house all of the regulator electronics within the pcm. He needs batteres to supply the 1500w loads for 12hours at night. So use a larger gauge wire for lower voltage drop.