Provides NAV outputs (parking brake, reverse, speed sense)
Retains chimes
Retains audio controls on the steering wheel
Can be used in non-amplified, or analog amplified models
Retains balance and fade
Micro "B" USB updatable
Metra by-GM29-SWC aftermarket radio data interface. When replacing the OEM radio with an aftermarket radio some features are lost with Metra's by-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.
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