Axxess® - OnStar Retention Interface

52 reviews / Item # sp1251
Axxess® - OnStar Retention Interface
Axxess® - OnStar Retention InterfaceAxxess® - OnStar Retention InterfaceAxxess® - OnStar Retention InterfaceAxxess® - OnStar Retention InterfaceAxxess® - OnStar Retention InterfaceAxxess® - OnStar Retention InterfaceAxxess Authorized Dealer
$63.42 - $224.60
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Product Details

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Metra Accessories

OnStar Retention Interface 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.



  • Retains many OnStar features
  • Retains OnStar/ OE Bluetooth w/adjustable volume output
  • Provides NAV outputs (Parking Brake, Reverse, Mute, and V.S.S.)
  • Retains RAP (Retained Accessory Power)
  • High level speaker input
  • Retains balance and fade
  • Navigation outputs included
  • USB update interface compatible
  • Retains chime w/adjustable volume output
  • Retains RAP feature

This interface is designed to allow the user to replace the OEM radio with an aftermarket unit in amplified or non-amplified GM vehicles and retain full functionality of the OnStar system as well as all safety and warning chimes. This interface has the capability of adjusting chime and OnStar volumes as well. The Interface may also retain the retained accessory power convenience features. Some Axxess interfaces may also have the required outputs for the installation of a navigation radio.

Axxess® Integrate, a subsidiary of mobile audio's one-stop-shopping conglomerate Metra, is at the very forefront of the mobile audio installer's field. Their cutting-edge interfaces make adding to or installing a car stereo, nav system, sat radio or auxiliary amplifier easy. With the complexity of modern vehicles, it's not a simple operation to install aftermarket electronics that will properly interface with the car's wiring, onboard computers and OEM infotainment system. Axxess has it figured out and dialed in.

Warranty Information

Find out everything you need to know about the product warranty

Axxess warrants that its Products will be free from defects in material and workmanship for 90 Days from the date of purchase by the Original Purchaser. This warranty does not apply to any Products that have been subjected to misuse, mishandling, misapplication, neglect (including but not limited to improper maintenance), improper installation, or alterations.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Product Reviews


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Axxess® - OnStar Retention Interface
Axxess® - OnStar Retention Interface
Average Rating: 4.9 of 5
5 of 5
Excellent Service
The product does what it is suppose to. I was nervous ordering from this company because I had never heard of it and the price was 40% less than everyone else. I chatted with a representative and decided to give it a try. Feedback and order status was spot on. Delivery was expeditious. We are now enjoying our newly installed radio very much.
MPosted by (Cumming, GA) /
2001 Buick Le Sabre
Was this review helpful for you? Yes
4.8 of 5
OnStar Retention Unit
Everything works exactly as it should! It retains my OnStar and warning chimes. It fits perfect on my vehicle and there was no trouble with installation in spite of the fact that I am not electrician.
SPosted by (Houston, TX) /
2006 Saturn Ion
Was this review helpful for you? Yes10  people found this review helpful.
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