This is the Genuine Nissan XM Satellite Tuner, this unit attaches to the Sat input Harness (Usually Under the dash) and allows you to receive XM Sat Signal through your Radio, No additional Tuners to Buy, NO Aftermarket Tuners to attach to the Vehicle, simply plug in this tuner, attach an XM Antenna, and purchase subscription from XM.
Most Nissan Vehicles are SAT Ready, if your Vehicle did not come SAT Ready, we also sell the SAT Harness to make it SAT Ready.