My antenna will not go down.  I can push it down and the minuet the power come on from the radio the antenna goes back up.  I figure it is the Relay.  Places I have looked and it is not...It is not by hatch release and it is not under the box behind the passangers seat.  Looking for advise on a third location.  By the way I started auto Crossing my C4 and it love it, WOW....dug

What year?
 Can you hear the motor running when the ant is supposed to be going down?

In 84, 85, and 88 (years I've worked on and owned, not sure if and when it moved, if it ever did. I doubt it did.)It is under the trim panel across the rear of the car with the hatch up. to the left of center about 10". Has six wires, in two connectors with 3 wires each. Square shape. I've seen both white and black cases.

I checked your profile and found you have a '96. The antenna relay is actually part of the antenna itself....

Appriciate the feedbacks - Its a 96 with the BOSE System.  I found the relay for the hatch release next the solinod after taking the cargo area trimm off.  I have a new one and cant find anything like it.  No, there is no sound of power like it wanting to go down.  I changed the mast out when the nylon broke.  I droped the motor, took it apart and put a new mast in it.  Don't believe I damaged any wires.  Now it goes up when the radio is turned on but won't go down.  I can push it down when off and raise it with power.   (more details...)