An interface device for interconnecting fixed controls of a vehicle to a replacement stereo. The interface device is capable of receiving control signals from fixed controls, such as steering wheel controls, backseat controls, handlebar controls, and the like, and then transmitting corresponding control...http://www.google.fr/patents/US7020289?utm_source=gb-gplus-shareBrevet US7020289 - Remote control interface for replacement vehicle stereos
Remote control interface for replacement vehicle stereos
