Holden Trailblazer 2017- Holden Trax 2017- TJ Holden Trailblazer 2017-Holden Trax 2017- TJHeadunit Installation RequirementsYou will needFacia - Single DIN : RequiredFacia - Double DIN: RequiredSteering Wheel Control Harness: Required, also requires radio brand specific patch leadAntenna Adaptor: RequiredAdditional ProductsT Harness (for adding aftermarket bluetooth car kits): Available Please enable javascript to use this siteImages About this VehicleDates: Jan 2013 through Jul 2017Manufacturer: HoldenSub-Model: TJChassis Type: SedanPlace of Origin: Australia Tags: HoldenSedanTraxTJSpeaker CavitiesFront: 6-1/2"Rear: 6-1/2" ‹ Holden Trailblazer 2017- Holden Holden Trax 2017- TJ ›