Download GROM Interface Installation into Nissan and Infiniti cars – Preparation 1. Turn off the car engine and remove the key from the ignition. It is recommended to disconnect the car battery before performing the installation. 2. While using the stereo removal tools carefully remove the radio from the dash pocket. Installation. 3. Locate the vehicle specific cable (NIS2) and blue colored Posi-Tap clip that came with your adapter (picture 1) 4. Connect NIS2 harness to the port at the back of the radio (see picture 2). Use the connector (3) on the picture 1. Note: If the port is occupied with the different factory harness – disconnect this harness; insert connector (3) to the slot at the back of the stereo, reconnect the disconnected factory harness back to the stereo using the female end of the NIS2 harness (4). If the port at the back of the stereo is empty – leave the female end of the NIS2 harness (4) hang free – do not connect it to anything. 5. Connect RED power wire (5) (can also be yellow) on the NIS2 harness to the radio 12V constant wire. You will need to use the blue Posi-Tap clip (6). The Posi-Tap clip is provided with your package. 6. Locate the radio 12V constant wire.