See also:

Audio Control Switch Operation
When the audio unit is turned on, operation of the audio unit from the steering wheel is possible. NOTE: Because the audio unit will be turned off under the following conditions, the switches wil ...

Under the Hood
Mazda3 models now offer a choice of engines:   Standard  148-horsepower, 2.0-liter four-cylinder engine that teams with a five-speed manual or five-speed automatic transmission Opt ...

Specifications
Engine Electrical System *1 ex factory CAUTION: When cleaning the iridium plugs, do not use a wire brush. (2.5-liter engine) The fine particulate coating on the iridium alloy and platinum t ...