Electronic turbo sound Universal install - for cars without a turbo Material: plastic abs Models: general without TURBO. Applicable Installation Instructions: 1 red Wired wire to positive battery terminal 2 black Wired wire to negative terminal 3 switch Fed wires (and green blue) fire wall to accelerator pedal through 4 micro Attached switch to accelerator pedal 5 switch Connected to the normally closed terminal and earth terminal on micro switch 6 accelerator Push fully in when, releasing the speaker makes dump valve sound