Optimus 120-1998 - Manual (Page 5)

connect the power and speakers.
Connecting the Speakers
1. Connect the gray wire to the right speaker's positive terminal. This
terminal is usually marked with a plus(+) sign or red mark.
2. Connect the gray/black wire to the right speaker's negative terminal.
This terminal might be marked with a minus (-) sign or it might not
be marked at all.
3. Connect the white wire to the left speaker's positive terminal.
4. Connect the white/black wire to the left speaker's negative terminal.
Connecting Power
Follow these steps to connect ground and primary, memory backup, and
remote power.
1. Connect the black ground wire to a chassis ground, such as a metal
screw attached to a metal part of the vehicle's frame. Be sure that
the screw is not insulated from the chassis by a plastic part.
2. Connect the yellow wire (with in-line fuse holder) to your vehicle
battery's positive (+) terminal or to a fuse that provides a
continuous source of 12 volts. The connection provides continuous
power for the clock and tuner memory when the ignition is turned off.
3. Connect the red power wire (with in-line fuse holder) to a point in
your vehicle's fuse block that has power only when you turn the
vehicle's key to either accessory (ACC) or START position.
This connection provides power to the stereo when you turn on the
ignition or turn the key to ACC, and turns off power when you turn off
the ignition. This prevents your vehicle's battery from being drained
if you leave the stereo on when you turn off the ignition.
4. Connect the blue wire to any optional equipment that you want the
stereo to turn on and off, such as a power antenna.
This wire does not provide power to the component. It simply turns
other equipment on or off. If you do not use this wire, secure it
with a wire tie and do not let it touch metal.
5. Plug the 14-pin wire harness into the stereo's 14-pin wiring socket.