Metra WM-GM29-SWC

New Metra WM-GM29-SWC aftermarket radio data interface and harness for General Motors 06-Up. When replacing the OEM radio with an after market radio some features are lost with Metra's WM-GM29-SWC interface most of those features get retained. This interface with connect an aftermarket radio to the OEM vehicle and communicate with the data system. This interface will provide and retain 12 volt accessory power, provide navigation outputs, retain chimes, retain steering wheel controls and retain balance and fade. This interface will work in non-amplified models in select Buick/ Cadillac/ Chevrolet/ GMC/ Hummer/ Pontiac/ Saturn 2006-up. The WM-GM29-SWC is a great option for anyone who wants to upgrade their factory radio without losing any of the features they love. It is easy to install and comes with all the necessary hardware. For over 70 years, Metra has maintained its cutting edge by paying attention to our marketplace and innovating products to fit the needs of the installer. We are the "Installer's Choice" because we are installers.