This Metra AXXESS vehicle-specific data interface is designed for use when installing an aftermarket radio. It retains R.A.P. (Retained Accessory Power) and provides 12-volt 10-amp accessory power and NAV output for parking brake, reverse, and speed sense. This Metra AXDIS also provides telematics retention, such as SYNC, OnStar, and UVO while offering solutions for amplified, non-amplified, and analog vehicles. | Metra | | AXXESS Radio Replacement Data Interface with SWC & Bluetooth for 2014-2021 Select GM Vehicles | Best Buy