Since research in intelligent autonomous road vehicles gets more and more popular, many interested researchers are confronted with the needs to setup a commercially available vehicle with drive-by-wire. Up-to-date road vehicles contain many mechatronical components, sensors and driver assistance systems, which can be interfaced and thus reduce the needs of expensive modifications and additional actors to a minimum. This paper describes how to interface steering, throttle and brake as well as built-in sensors, and shows an inexpensive way to provide a safe research platform for road traffic.