Panasonic CQRX65EU - Manual (Page 17)

A handy way to identify the speaker leads and the
speaker they connect with is to test the leads using a
1.5 volt AA battery as follows.
Hold one lead against one pole of the battery and
stroke the other lead across the other pole. You will
hear a scraping sound in a speaker if you are hold­
ing a speaker lead.
If not, keep testing different lead combinations until
you have located all the speaker leads. When you
label them, include the speaker location for each.
Antenna Motor
If your vehicle is equipped with an automatic power
antenna, identify the vehicle motor antenna lead by
connecting one bulb tester lead to the vehicle battery
lead and touching the remaining exposed wires from
the cut radio connector plug one at a time. You will
hear the antenna motor activate when you touch the
correct wire.
Antenna
The antenna lead is a thick, black wire with a metal
plug at the end.
Telephone Mute
If you have a cellular phone, refer to its operator
manual to identify the telephone mute lead connec­
tion.
□ Connect All Leads
Now that you have identified all the wires in the vehi­
cle, you're ready to begin connecting them to the
stereo unit wires. The connection diagram on Page
24 shows the proper connections and color coding of
the leads.
We strongly recommend that you test the unit before
making a final installation.
You can set the unit on the floor and make temporary
connections to test the unit. Use electrical tape to
cover all exposed wires.
IMPORTANT; Connect the red power lead last, after
you have made and insulated alt other connections.
Ground
Connect the black ground lead of the power connec­
tor to the metal vehicle chassis.
Speakers
Connect the speaker wires. See the wiring diagram
below for the proper hookups. Follow the diagram
carefully to avoid damaging the speakers and the
stereo unit.
The speaker used must be able to handle more than
25 watts of audio power. If using an optional audio
power, the speakers should be able to handle the
maximum amplifier output power. Speakers with low
input ratings can be damaged.
Speaker impedance should measure 4 - 8 ohms,
which is typically marked on most speakers. Lower
or higher impedance speakers will affect output and
can cause both speaker and stereo unit damage.
CAUTION : Never ground the speaker cords. For ex­
ample, do not use a chassis ground system or a
three-wire speaker common system. Each speaker
must be connected separately using parallel insulat­
ed wires. If in doubt about how your car's speakers
are wired, please consult with your nearest profes­
sional Installer.
CORRECT
No Common Ground
INCORRECT
Common Chassis Ground
L *
1,
_______^
R *
INCORRECT
Speaker Common
{common earth lead)
CQ-RX65EU
17