Panasonic ca-tu9000u User Manual

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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 car power lead.

If your car 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. Otherwise you may
ignore this procedure. (The yellow battery lead pro-
vides continuous power to maintain a clock, memo-
ry storage, or other functions.)

If your car 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 car is not wired for an audio unit: 
Go to the fuse block and find the fuse port for the
battery, usually marked BAT.

❐ Connect All Leads

Now that you have identified all the wires in the car,
you are ready to begin connecting them to the stereo
unit wires. The wiring diagram (

➡

pages 82, 83)

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 tempo-
rary 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 all other connections.

Ground
Connect the black ground lead of the power connec-
tor to the metal car chassis.

Motor Antenna
Connect the car motor antenna lead to the dark blue
motor antenna relay control lead.

Battery
Connect the yellow battery lead to the correct radio
wire or to the battery fuse port on the fuse block.

Antenna
Connect the antenna by plugging the antenna lead
into the antenna receptacle.

Equipment
Connect any optional equipment according to the
instructions furnished with the equipment. Read the
operating and installation instructions of any equip-
ment you will connect to this unit.

Power 
Connect the red power lead to the correct car radio
wire or to the appropriate fuse port on the fuse
block.
If the stereo unit functions properly with all these
connections made, disconnect the wires and pro-
ceed to the final installation.

❐ Final Installation

Lead Connections
Connect all wires, making sure that each connection
is insulated and secure. Bundle all loose wires and
fasten them with tape so they will not fall down later. 

Congratulations! After making a few final checks,
you’re ready to enjoy your new stereo system.

❐ Final Checks

1. Make sure that all wires are properly connected

and insulated.

2. Turn on the ignition to check the unit for proper

operation.

If you have difficulties, consult your nearest author-
ized professional installer for assistance.

❐ Preparation

≥

We strongly recommend that you wear gloves
for installation work to protect yourself from
injuries.

≥

Disconnect the cable from the negative - battery
terminal (see caution below).

≥

Unit should be installed in a horizontal position
with the front end up at a convenient angle, but not
more than 30o.

Caution:
≥

Do not disconnect the battery terminals of a car
with a trip or navigational computer since all
user settings stored in memory will be lost.
Instead take extra care with installing the unit
to prevent shorts.

Less than 30x

This unit should be professionally installed. In case
of difficulty, please consult with your nearest profes-
sional installer.
1. This unit only operates in a 12 V DC negative

ground system.

2. 

Follow the electrical connections carefully 
(

➡

pages 82, 83). Failure to do so may result in

damage to the unit. 

3. Connect the power connector after all other con-

nections are made.

4. Be sure to connect the battery lead (yellow) to the

positive terminal (+) of the battery or fuse block
(BAT) terminal.

5. Insulate all exposed wires to prevent short circuit-

ing.

6. Secure all loose wires after installing the unit.
7. Please carefully read the operating and installa-

tion instructions of the respective equipment
before connecting it to this unit.

Caution:
≥

Please follow the laws and regulations of your
state, province or country for installation of the
unit.

Speakers
Identify the car speaker leads. There are two leads
for each speaker, usually color coded.
A handy way to identify the speaker leads and the
speaker they are connected 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.

Speakers
Connect the speaker wires. See the wiring diagram
for the proper hookups. Follow the diagram careful-
ly to avoid damaging the speakers and the stereo
unit.
The speakers used must be able to handle more than
45 W 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 ≠, 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 example,
do not use a chassis ground system or a three-
wire speaker common system. Each speaker
must be connected separately using parallel
insulated wires. If in doubt about how your
car’s speakers are wired, please consult with your
nearest professional installer.