See also:

AUX Mode (Auxiliary input)
You can connect portable audio units or similar products on the market to the auxiliary jack to listen to music or audio over the vehicle's speakers. To use the auxiliary jack, pull up its cover. ...

Trailer Towing
The Mazda3 is not designed for towing. Never tow a trailer with your Mazda3. ...

Safety Certification
FCC ID: CB2MBLUEC07 IC:279BMBLUEC07. This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) This device ...