Schematic Wiring Color Code - The table below shows the output voltage levels from each of the 16 possible resistor combinations. The right most bit represents Pin 6. The other pins go in sucession with the binary bits 2, 3 and 4.. Knowing the electrical color code that dictates which wire does what is imperative not only in the correct configuration of an electrical system, but it's also paramount for your safety.. Here is the schematic of the whole setup and below is the Arduino sketch. Please note that the resistors needed to be at least 1/4W rated but I did not have.
Buy Scosche GM02B Wire Harness to Connect An Aftermarket Stereo Receiver for Select 1988-2005 GM Vehicles: Radio Wiring Harnesses - Amazon.com FREE DELIVERY possible on eligible purchases. LIST OF HARNESSES : 01 CBP battery positive cable. 02 CBN battery negative cable. 03 CB/AV connecting cable, front batteries. 04 CB/CE connecting cable, batteries to electronic unit..