2004-Up GM LAN Link + interface
The LPGM35 allows you to replace your factory OEM stereo while retaining factory steering wheel controls, if the vehicle is equipped. This interface will maintain the data-controlled +12V accessory output as well as provide navigation outputs for reverse, vehicle speed pulse and park brake.
• Provides analog +12V output for variable dash illumination and analog pulse output for vehicle speed, reverse trigger and ground output for parking brake engagement.