iDatalink Maestro ADS-MSR SR Interface Module General Features: Universal radio replacement interface retains factory features with a new car stereo The module will need to be loaded with correct firmware before installation — see Details for more information Works with required vehicle-specific harness (sold separately) Retains factory steering wheel audio controls, amp, and backup camera with any receiver Retains additional features with an iDatalink-ready head unit: secondary vehicle display amplifier digital fade, DSP, and gain adjustment front camera auto control side and 4x4 camera control visual parking assist rear seat entertainment controls from A/V screen OnStar (if equipped) Wireless programming via built-in Bluetooth adapter and iDatalink's Weblink Desktop or Weblink Mobile applications Warning: This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.