This Package Includes the Following Items:
1 x Metra 99-7514B Single/Double DIN Dash Installation Kit for 2010-2013 Mazda 3 Vehicles Matte Black Color
1 x Mazda Factory Stereo to Aftermarket Radio Harness Adapter Plug
1 x Harmony Audio HA-40HD10 Mazda Factory Radio to Aftermarket Antenna Adapter

Metra 99-7514B Single/Double DIN Dash Installation Kit for 2010-2013 Mazda 3 Vehicles Matte Black Color:
Install dash kit for Single or Double DIN/ISO Radios
Compatible with 2010 Mazda 3 vehicles
Includes a storage pocket below the radio
Designed and manufactured with precision tolerances, resulting in a gapless fit between the dash and the kit
Painted matte black to match factory dash color
High-grade ABS plastic construction
Factory style texture

Mazda Factory Stereo to Aftermarket Radio Harness Adapter Plug:
Specifications:
Simply plug and play installation, no cutting required
Designed for standard audio system, premium audio may require different harness
Clearly marked color coded wires
Ideal for any aftermarket radio
18 gauge high quality wire
Direct OEM fit connection

Harmony Audio HA-40HD10 Mazda Factory Radio to Aftermarket Antenna Adapter:
Specifications:

Simply plug and play installation, no cutting required
Adapts factory antenna plug into aftermarket style
Ideal for any aftermarket radio
Direct OEM fit connection