Ram engine sound system. You can choose gas or diesel sound. Adjustable horn. Can be used with cars, trucks, or boats. Sound is synchronized with actual speed of vehicle. This package includes;
One 4 speaker
One control unit
One servo activated micro switch
One circuit board
There is 12 of wire between the speaker and the circuit board. From the circuit board there are three series of wires. One set goes to power source(12), one set leads to the servo activated micro switch (11). The final set lead to the control unit(aka sensor board) from which an additional set of wires attach to motor(24).