Metra Axxess GMOS-12 For SATURN ONSTAR INTERFACE 1999 - 2005
OnStar Retention Interface (GMOS-12) by Axxess®. If your vehicle has OnStar, you can still install an aftermarket
stereo and retain OnStar's safety and convenience functionality by using an Axxess OnStar retention Interface.
The GMOS-12 interface is designed to allow the user to replace the OEM radio with an aftermarket
unit and retain full functionality of the OnStar system as well as all safety and warning chimes.
The GMOS-12 will also retain the retained accessory power convenience features.
This interface also has the capability of adjusting the OnStar volume.
USB update interface compatible
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