Elta 7173N2: 17. 16.

17.  16.

WIRING

This unit is designed only for vehicles which operate on 12 V DC and negative ground electrical 

systems.

Exposed wires must be insulated absolutely in order to avoid a short-circuit between uncovered 

wires/leads and the vehicle body. Collect all wires as bundles and make sure that the ends of the 

wires do not have any contact with metal parts.

NOTES:

•  Do not short circuit the antenna and ground wire.

•  This unit has a negative grounding.

•  Do not short circuit the speaker wires.

•  Before the installation connect all wires and check the operation of the unit.

ANTENNA JACK

ANTENNA PLUG

CAR BODY

 GROUND

FUSE 3 A

12V PLUS /

 TO B+ 12V

 BATTERY

RED

GREEN

GREY

YELLOW

POWER SUPPLY FOR 

AUTOMATIC ANTENNA

BLACK / 

GROUND

LEFT SPEAKER +

RIGHT SPEAKER +

CONNECTION OF THE SPEAKERS

Precautions

•  Must use only not grounded speakers.

•  The speakers used with this unit should have a sufficient music power rating.

•  Speakers with too low power rating can be damaged.

•  Must use 4 - 8 Ω impedance speakers. A too high or to low impedance leads to performance 

losses and can damage of the speakers or this unit.

•  Don't use a 3 leads speaker system with a common ground wire. Never connect the speaker 

wire at the car body.

•  Keep the speaker wires away from the antenna and antenna wire (about 30 cm).

•  The unit becomes damaged, if speakers (front, rear) are not correctly connected.

•  Never connect more than one speaker to a set of speaker wires (except the connection of a 

tweeter).

Fuse

As a replacement for a blown fuse it is absolutely necessary to use a fuse with the prescribed rating 

(3 A). By the use of fuses with higher ratings or by the connection without the use of a fuse a fire or 

a damage of the unit can be caused. If the exchanged fuse is blown likewise, please contact the 

next workshop.

WRONG

Chassis

Chassis

WRONG

WRONG