Radio Replacement Kit, Antenna Adapter and Wire Harness Combo Kit. Complete installation combo kit needed to install your aftermarket radio into your factory car radio location. Important Notes: This kit is designed for installing Double din size radios. Off brand/off size radios might not fit properly. Will not retain factory steering audio controls- extra adapter required. Only works with vehicles that didn't come with factory navigation. Won't retain factory steering audio, rear dvd, etc. Product Contents: 1. Radio Kit 2. Radio wire harness 3. Antenna Adapter ; Works with the following vehicles: 2000-2006 BMW X5 (no factory nav)