Page 1
SM-903CD WIRING HARNESS GUIDE
Power Wires
Yellow – Battery - Connects to the battery (+) for constant power. This is for memory
Red – Ignition - connects to the ignition switch (accessory) wire. This will turn the radio
on/off.
Black – Ground - connects to ground wire (car chassis)
Blue – Power Antenna - connects to the power antenna wire
Speaker wires
White – connects to the (+) of the front left speaker.
White/black – connects to the (-) of the front left speaker
Gray – connects to the (+) of the right front speaker
Gray/black – connects to the (-) of the right front speaker
Green – connects to the (+) of the rear left speaker
Green/black – connects to the (-) of the rear left speaker
Purple – connects to the (+) of the rear right speaker
Purple/black – connects to the (-) of the rear right speaker
RCA Cables/Connectors
RCA Output – Front/Rear Audio (Red – right channel, white – left channel)
Loading...