SoundRacer V12 Ferrari 512BB Engine Sound Effects - SRV12 Race car sounds through your stereo. Imagine starting up your modern, boringly silent car and the interior is filled with the thrilling sound of a powerful Super Sports Car engine. The SoundRacer Plugs into your cars cigarette lighter and uses an FM transmitter to play a V12 engine sounds through your car stereo It's an incredibly simple device to use - plug it into your car's cigarette lighter socket. The SoundRacer plugs into your cigarette lighter and transmits rev-matched fake V12 engine sounds via FM radio making your car sound.