Product highlightsretains safety chimes through an onboard speaker retains balance and fade controls and retained accessory power (R.A.P.) provides 12-volt 10-amp accessory power provides outputs for NAV receivers (parking brake, reverse, speed sense) includes pre-wired harness for Axxess' AXSWC steering wheel control adapter (sold separately) warranty: 1 year What's in the boxRadio replacement interface module w/ built-in chime speaker Wiring harness Installation Instructions About this itemWritten by Crutchfield's Bob BihlmayerKeep your factory chimes and other features Installing an aftermarket receiver in many older GM vehicles means losing the chime that warns the door is open, along with other handy factory features. Axxess' AXDI-CL2 wiring interface lets you replace the factory receiver in these vehicles and keep your audible safety warnings along with your balance and fade controls and retained accessory power (R.A.P.). Wire up the AXDI-CL2 to your aftermarket radio, mount the module in a location where the chime can be heard, and plug it into the existing factory plug. The interface provides 12-volt accessory power, and also supplies the parking brake, reverse, and speed sense outputs you'll need to install a navigation receiver. The package includes a pre-wired harness to connect Axxess' AXSWC adapter ( sold separately) to retain your steering wheel audio controls. Wire up the AXDI-CL2 to your aftermarket radio, mount the module in a location where the chime can be heard, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact. The AXDI-CL2 does not retain OnStar and is designed for non-amplified factory systems, systems with analog amplifiers, or systems in which the factory digital amp has been bypassed. Please enter your vehicle information or call an Advisor at to find out if this adapter is compatible with your vehicle. Important Note: This AXDI-CL2 interface allows you to keep your factory door chime (needed to keep audible safety warnings functioning) while providing a switched 12-volt power source for your new radio. If you do not use a compatible adapter when you replace your factory radio, you will disable the audible warning system in your vehicle. Crutchfield cannot provide a free wiring harness for your vehicle, and we strongly recommend that you use this interface when replacing this vehicle's factory radio. Failure to do so may result in serious injury or death.