I am replacing the original antenna with a new motorised.
Problem is the old one used external relays & only activates 12v for about 12 seconds. I need to find the 12v on/off with the radio on/off.
The relays do not operate like normal so the line is not before the relays.
The originals operate by the computer grounding the coil.
Could someone tell me where the external antenna logic cct is.

Thanks