Does anyone know about the radio antena?

I am having a bit of a problem with the antena. I just bought a new one and tried to replace it, but the motor is going backwards. When I turn on the sterio it goes down, but when you turn it off it goes up about 6 inches. If anyone could help that would be great.

Thanks
Mario Salcido

It's working backwards because the polarity is incorrect. Try reversing the wires and see what happens.