* The under-dash fuse panel: This is the most common location for relays in many vehicles. Check the fuse panel's diagram to see if an antenna relay is listed and its corresponding position.
* The trunk (boot): Some Cadillacs might have the relay located in the trunk, especially if the antenna mechanism is located there.
* The radio itself: In some cases, especially if it's a simpler system, the relay functionality might be integrated within the radio unit itself.
To find it:
1. Consult your owner's manual: This is the best starting point. It should have a fuse/relay panel diagram.
2. Check the fuse panel diagram: Even without the manual, the fuse panel usually has a diagram showing what each position is for. Look for "Antenna," "Power Antenna," or a similar label.
3. Visually inspect the wiring: Trace the wiring from the antenna motor to see where it might connect to a relay.
Without knowing the exact model of your 1976 Cadillac (Coupe deVille, Fleetwood, Seville, etc.), it's impossible to give a more precise location.
