User guide
For example, incoming mobile phone calls will interrupt ongoing 
Intercom calls, while incoming intercom calls will interrupt the audio 
from the built-in FM Radio etc.
Higher Priority
1. Mobile Phone audio or GPS instructions (device 
specic) 
2. Intercom
3. A2DP audio source
4. FM Radio (built-in) 
5. Auxiliary Line-In Port (for corded connection 
e.g. MP3 players).
Lower Priority
4.4 SOFTWARE UPGRADES AND SETTINGS
To make the most of your G4 PowerSet, 
make sure that both units are running the 
latest software. To download the latest 
software updates and take advantage 
of customizing settings via the computer, register online at: 
www.cardosystems.com/download/softwareupgrade and have 
your product serial number ready.
After downloading the Cardo Upgrades program, use the USB cable 
included in the retail box to connect the G4 to your computer.
Once connected to your computer, you will easily be able to customize 
the settings on your G4 following the on-screen instructions.
Future software upgrades and program patches will ensure the software 
of your G4 is kept up-to-date and will include additional features, status 
announcements and other valuable functions.
Please note that until further notice, upgrades will only be available for 
Windows® based PCs running Windows XP™, Vista™ or Windows 7™ 
operating systems.
4.5 RESETTING THE G4
If the G4 fails to respond despite repeated attempts, you can reset it 
by simply charging it. After approximately 10 seconds, remove the G4 
from the charger and turn it on again. Your G4 should now respond 
as expected.
5. GETTING STARTED
5.1  MOUNTING THE G4 ON A HELMET
The Helmet clamp that includes your microphone and speakers 
must first be mounted on the helmet. Once mounted, the G4 
unit can be attached or detached from the clamp at any time 
(sec. 5.4).
There are two methods that can be used to attach the clamp to the 
helmet:
Standard Method: Recommended for most helmet types.
Glue Plate Method: Recommended for helmets 
to which the standard method cannot be applied, 
using the Glue Plate included in the box.
Glue Plate
Standard Method: Fastening the Clamp to the Helmet 
1. Use the enclosed Allen Wrench to loosen 
the two screws on the Back Plate. 
2. Slide the Back Plate between the internal 
padding and the external shell of the helmet. 
3. Adjust the clamp’s location so that the 
microphone is located in front of the center of 
your mouth, and then tighten the screws. You 
may need to reposition the Clamp repeatedly 
until you identify the best spot.
If you have purchased a helmet clamp version 
with the corded microphone, please refer to 
section 5.2.
6
scala rider
® 
G4
PowerSet










