This Package Includes the Following Items:
1 x Metra 99-7516B Single DIN/Double DIN Installation Dash Kit for 2007-2009 Mazda CX9 (Black)
1 x Metra 70-7903T Mazda 2007 - Up Service Harness
1 x Harmony Audio HA-40HD10 Honda Mazda Factory Radio to Aftermarket Antenna Adapter

Metra 99-7516B Single DIN/Double DIN Installation Dash Kit for 2007-2009 Mazda CX9 (Black):

Metra 70-7903T Mazda 2007 - Up Service Harness:
Wire Harness
For Adjusting Clock Time w/o Disassembling Dash

Harmony Audio HA-40HD10 Honda 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 aftermarket radio
Direct OEM fit connection