User guide
English
Glue Plate Method: 
You have the option to glue the Helmet Clamp onto your helmet 
when the above standard method cannot be used, or if you prefer to 
secure the Helmet Clamp with adhesive glue. 
Caution: This process can be done only once!
NOTE: While we have no reason to believe that the gluing option might 
negatively aect any helmet, Cardo does not assume any responsibility 
to that eect, irrespective of its nature and circumstances. The Glue Plate 
is oered as an option that you may choose to use at your own risk and 
subject to renouncement of any future claims.
1. Use the enclosed Allen Wrench to remove 
both Allen screws and release the Helmet 
Clamp’s back plate. 
2. Determine the location on the helmet where the Helmet Clamp 
must be attached.
3. Adjust the Helmet Clamp’s location on the Helmet so that the 
microphone is located opposite the center of 
your mouth. You may need to reposition the 
Clamp repeatedly until you identify the best 
spot. (Be sure to clean the selected area prior to 
the gluing process). 
4. Use the pre-moistened Towlette to clean the helmet area where 
you want to install the Glue Plate. Allow to dry thoroughly.
5. Peel the foil cover from the Glue Plate’s adhesive pad. 
6. Place the Glue Plate into position according to #3. Press rmly 15 
seconds on all 3 parts of the Glue Plate.
7. The adhesive pad bonds to full strength over the next 24 hours. 
Therefore we recommend not using the G4 during this 24 hour 
period.
8. Fasten the Clamp to the Glue Plate using the Allen screws that 
were previously removed.
If you have purchased a helmet clamp version with the corded 
microphone, please proceed as follows: 
5.2 ATTACHING THE CORDED MICROPHONE TO A 
  FULLFACED HELMET
If you are using the corded microphone version, you must rst make 
sure your helmet clamp is attached to your 
helmet as described in previous section (5.1). 
Clean the exact spot on the internal padding of 
the helmet, opposite your mouth, where the 
microphone will be placed.
a. Peel the foil cover from the adhesive Velcro 
pad and place the Velcro pad on the chosen 
location opposite your mouth.
b. Attach the microphone to the Velcro, as shown 
in photo.
c. When done, tighten the screws of the clamp.
5.3 POSITIONING THE MICROPHONE AND SPEAKERS
Speaker A
Speaker B
The microphone must be positioned in front 
of the center of your mouth as detailed 
above.
Attach the speakers to the Velcro inside 
your helmet, opposite your ears (short 
speaker cord for left ear & long speaker cord 
for right ear). Use the supplied Velcro pads if 
needed.
Using two speakers inside the helmet may be prohibited in certain 
jurisdictions. If this is the case, you should tuck away the long 
corded speaker underneath the helmet padding as follows: 
7
scala rider
®
 G4
PowerSet










