They should be. If Im not mistaken, the antenna plug is the same plug on every radio. From my understanding, Nissan uses the same antenna for all there vehicals. Did you connect the antenna plug? It is the gray rectangle plug. The main harness is different among the vehicals, but that wont interfear with the signal. Double check to make sure that plug is connected. That should solve your problem. If so, unplug it, and plug it back in. If its the same, maybe its the radio.