No. 3 transmitter id code cannot be reprogrammed
Location indexMazda 6 Service Manual: How to connect USB port/Auxiliary jack
Connecting a device
1. Open the console lid.
2. Connect the connector on the device to the USB port.
Connecting with a connector cable
1. Open the console lid.
2. Connect the device plug/connector cable to the auxiliary jack/USB port. Pass
the device plug/connector cable through the notch i ...
Mazda 6 Service Manual: Operational Range
The system operates only when the driver is in the vehicle or within operational
range while the key is being carried.
Starting the Engine
NOTE
Starting the engine may be possible even if the key is outside of the
vehicle and extremely close to a door and window, however, always start the ...