Fittings instructions
Have the Radiphone installed in your vehicle and serviced by a trained service technician only. Faulty installation or
servicing can be dangerous and will result in the expiry of your guarantee.
If the vehicle is not adequately shielded against radio frequency signals, electronic injector systems, electronic ABS
systems, electronic cruise control systems or other electronic equipment may experience malfunctions.
Safety notes
Before starting to mount your car radio, read the mounting and
connection instructions carefully.
Disconnect the vehicle battery's negative terminal before making
connections.
Be sure to observe the safety notes of the automobile manufacturer
(airbags, alarm systems, on-board computers, immobilisers).
Before drilling holes, look to see what is on the other side - making
holes into the battery, wiring looms or fuse box is not recommen-
ded!
The positive lead used must have a cross-section of at least 1.5
2
mm
. The set is protected by a quick-acting 10 A fuse.
During operation of the unit, the set's side wall may heat up
considerably.
Be sure to keep all wires away from hot parts of the housing.
In some vehicles you will find a 20-pin connector pre-fitted in the
dashboard's installation space. This connector must not be used
for connecting the car radio!
You must not connect your Helsinki car radio to an existing
8-pin +/- ISO connector in your car. Always use the adapter
cable. Our warranty shall be vain if the connection is made
inadequately.
Preparing for the installation
The following section gives you a brief instal-
lation overview.
What car radio components are installed in your car?
Car radio, loudspeakers with amplifier (active) or without amplifier
(passive), antenna with or without amplifier, power antenna, window
antenna.
What adapters are used for the existing car radio?
Are there standard ISO connectors (which are compatible with your
Helsinki car radio) or car specific adapters?
What cross-section do the existing cables have?
Vehicles without car radio
Are loudspeakers and power cables installed in your car? Are standard
ISO connectors or car-specific adapters used?
What cross-section do the existing cables have?
What does an standard ISO connector look like?
Take a look at the cables included in the delivery. Both cables are
equipped with standard ISO connectors. The two red wires and the
brown wire of the positive and negative cable have a cross-section of 1.5
2
mm
. The orange and the yellow/green wire have a cross-section of 1
2
mm
.
The pinning of standard ISO connectors may differ accor-
ding to auto manufacturer.
While installing and mounting this equipment, you must
disconnect the negative terminal of the battery.
You must also comply with all safety instructions given by
the auto manufacturer (airbag, alarm system, board com-
puter, vehicle immobilizer).
GB
Helsinki RTM 127
• Connecting the power supply
Connection to standard ISO adapter installed in
your car.
You must not connect your Helsinki car radio to an existing
8-pin +/- ISO connector in your car. Always use the adapter
cable. Our warranty shall be vain if the connection is made
inadequately.
To prevent inadequate electrical connection in vehicles equipped with
ISO connectors, use the universal ISO adapter cable (P/N 7 607 621 126)
for constant power connection, negative connection, the positive con-
nection via the ignition, illumination and +12V switching output for
external components such as a power antenna.
At present, the following vehicles with standard ISO connectors
can be adapted using the universal ISO adapter cable: Alfa Romeo,
Citroen, Fiat, Honda, Lancia, Mercedes, Peugeot, Porsche, Renault,
Skoda.
Attention! For all other car models with standard ISO connector use the
car-specific adapter cable. Make sure that the existing car radio terminal
in the your car is protected by a 10 A fuse.
Power supply to vehicle-specific connectors
If the existing car radio terminal in your car is protected by a 10 A fuse (see
operating instructins or fuse box in your car), you only need to have the
car-specific adapter cable which is available at your dealer (see Fig.
6,page 5).
If the fuse value is less than 10 A, follow the steps described under
„Connection in vehicles without car radio wiring".
Connection in vehicles without car radio wiring
If your car is not equipped with any car radio wiring or if the cross-section
of the existing positive/negative wires is insufficient (< 1.5 mm
the enclosed ISO +/- cable (one brown, orange, yellow/green wire and
two red wires) together with the universal power supply cable (available
at your specialist dealer; P/N 7 607 884 093); see Fig. 4 (page 10).
• Connecting the loudspeakers
Loudspeaker connection to the standard ISO adap-
ter in your car
For this type of connection, first check whether you have passive or active
loudspeakers installed in your car. Active loudspeakers have an integra-
ted amplifier, passive loudspeakers do not have an amplifier. For more
information contact your car dealer or audio dealer.
If your car is equipped with passive loudspeakers (4 ohms) you can adapt
the ISO connector installed in your car. Use ISO cable (7 607 647 093)
to prolong your wiring. If active loudspeakers are installed in your car, you
can order the necessary adapter cable for various vehicles from your
specialist dealer.
Loudspeaker connection in vehicles without
loudspeaker wiring
For subsequently installed loudspeakers use the ISO loudspeaker cable
included in the delivery. Use cable connectors to link the ISO loudspea-
ker cable to the loudspeakers (not included in the delivery); see Fig. 7
(page 5).
- 8 -
2
), install
8 622 401 055