Optimus 120-1995 - Manual (Page 2)

AM/FM/CD Car Stereo (120-1995) Installation Faxback Doc. # 6993
For easier installation, the supplied 13-wire harness includes all the
lead wires you need to connect the stereo to speakers, power, and
optional components. You might need additional wire to complete
connections, depending on your individual auto sound system. Your local
Radio Shack store carries a full line of wire and wire management
accessories.
Caution: For added safely and to protect your stereo, disconnect the
cable from the negative (-) terminal on your vehicle's battery before
you begin installation.
ROUTING SPEAKER WIRE
If you install speakers, avoid routing the speaker wires near moving
parts or sharp edges. You can usually route them along the wiring
channel beneath the vehicle door's step plates by carefully removing the
molding that holds the carpet in places. After you route the speaker
wires, replace the molding.
CONNECTING SPEAKERS
Any speakers you connect to the stereo must have a combined power-
handling capacity of at least 32 watts, and each individual speaker
must have an impedance of at least 4 ohms. Your local Radio Shack store
carries a full line of automotive speakers.
Caution: You must connect a separate wire to each speaker terminal as
described in the following procedures. Do not use a common wire or
chassis ground for any speaker connection.
Connecting Two Speakers
If you are using only one pair of speakers, set 4CH/2CH on the left side
of the stereo to 2CH. Then connect the speakers to the supplied harness
as follows.
1. Connect the harness' gray wire to the right speaker's positive (+)
terminal.
2. Connect the harness' violet wire to the right speaker's negative (-)
terminal.
3. Connect the harness' white wire to the left speaker's positive (+)