OPTIMUS 3-Way Speaker System
(120-1733)                   Installation             Faxback Doc. # 17091

WIRING THE SPEAKERS

All Radio Shack auto sound systems come with eight color-coded speaker
wires.  This chart shows Radio Shack's standard color codes.

Speaker Terminal                              Wire Color

Left Rear                                     Green (+) / Green-Black (-)
Left Front                                    White (+) / White-Black (-)
Right Rear                                    Violet (+) / Violet-Black (-)
Right Front                                   Gray (+) / Gray-Black (-)

For each speaker wire, match the negative conductor (with the black stripe)
to the negative (-) speaker terminal to ensure proper phasing (+ to + and -
to -). (Improper phasing causes poor bass response.)

NOTE:  Other auto sound systems' wires might not use the same color codes.
       If your auto sound system is other than a Radio Shack brand, check
       its owner's manual for the speaker wire color codes.

Connect the stereo's speaker wires to the speakers, using the color code
chart as a guide. Then turn on your system to be sure that the speakers are
connected properly.

CAUTION:  Do not connect any speaker wires to chassis ground.  Use all of
          the specified wires to connect the speakers to your vehicle's
          auto sound system.

TWO-SPEAKER SYSTEM

White to Left Positive
White-Black to Left Negative
Gray to Right Positive
Gray-Black to Right Negative

FOUR-SPEAKER SYSTEM

If your car has front to rear fader, connect your speakers as follows.

Green to Left Rear Positive
Green-Black to Left Rear Negative
White-Black to Left Front Negative
White to Left Front Positive
Violet to Right Rear Positive
Violet-Black to Right Rear Negative
Gray-Black to Right Front Negative
Gray to Right Front Positive

MOUNTING THE SPEAKERS

1.  Select a flat area for the mounting surface.  The surface should be
    sturdy enough to support the weight of the speakers.  Be sure auto
    sound system's wires will reach the mounting location.

2.  Use the supplied template to mark the locations for the mounting
    screws.

3.  Drill three 5/32-inch holes for each speaker's mounting screws and
    another for each speakers wire.

4.  Thread two of the supplied bolts into the holes on the bottom of the
    speaker cabinet and tighten them securely.

5.  Route the speaker wire form your auto sound system,  through the
    mounting surface to the speaker location, and connect it to the
    speaker.

6.  Position the speaker cabinet on the mounting surface by inserting the
    bolts through the drilled holes.

7.  From under the mounting surface, place one of the four supplied washers
    over each bolt. then thread and tighten two of the supplied wing nuts
    until the speaker cabinet is secure.