Panasonic CQ-MRX777EUC - Manuel (Page 48)

Installation Guide
(Continued)
□ Required Tools
You’ll need a screwdriver, a 1.5 V AA battery, and
the following:
12 V DC
TEST BULB
ELECTRICAL
TAPE
SIDE-CUT
PLIERS
□ Dashboard Specifications
THICKNESS
MIN. 3/16" (4.75 mm)
MAX. 7/32" (5.56 mm)
2-3/32" (53 mm)
□ Identify All Leads
The first step in installation is to identify all the
vehicle wires you’ll use when hooking up your
sound system.
As you identify each wire, we suggest that you
label it using masking tape and a permanent mark­
er. This will help avoid confusion when making
connections later.
Note: Do not connect the power connector to the
stereo unit until you have made all connections. If
there are no plastic caps on the stereo hooking
wires, insulate all exposed leads with electrical
tape until you are ready to use them. Identify the
leads in the following order.
Power Lead
If your vehicle has a radio or is pre-wired for one :
Cut the connector wires one at a time from the
plug (leaving the leads as long as possible) so that
you can work with individual leads.
Turn the ignition on to the accessory position, and
ground one lead of the test bulb to the chassis.
Touch the other lead of the test bulb to each of the
exposed wires from the cut radio connector plug.
Touch one wire at a time until you find the outlet
that causes the test bulb to light.
Now turn the ignition off and then on. If the bulb
also turns off and on, that outlet is the vehicle
power lead.
If your vehicle is not wired for an audio unit:
Go to the fuse block and find the fuse port for
radio (RADIO), accessory (ACC), or ignition (IGN).
Battery Lead
If your stereo unit has a yellow lead, you will need
to locate the car’s battery lead. Othenwise you may
ignore this procedure. (The yellow battery lead
provides continuous power to maintain a clock,
memory storage, or other function.)
If your vehicle has a radio or is pre-wired for one:
With the ignition and headlights off, identify the car
battery lead by grounding one lead of the test bulb
to the chassis and checking the remaining
exposed wires from the cut radio connector plug.
If your vehicle is not wired for an audio unit:
Go to the fuse block and find the fuse port for the
battery, usually marked BAT.
Speakers
Identify the car speaker leads. There will be two
leads for each speaker, usually color coded.
A handy way to identify the speaker leads and the
speaker they connect with is to test the leads
using a 1.5 V 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
holding 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.
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CQ-MRX777EUC