1984 Silverado Radio Harness Question

[84 Silverado]

Good Afternoon/Evening Gents.
I've got a new antenna that needs constant power. My un-educated idea is to tie it to the wire that powers a power antenna. If this is not a bad idea, which one of these wires is the one I need to use?

If this is a bad idea, please let me know how to get power to the antenna only when the ACC is on or the truck is running.

Thanks in advance.

 

[AuroraGirl]

Good Afternoon/Evening Gents.
I've got a new antenna that needs constant power. My un-educated idea is to tie it to the wire that powers a power antenna. If this is not a bad idea, which one of these wires is the one I need to use?

If this is a bad idea, please let me know how to get power to the antenna only when the ACC is on or the truck is running.

Thanks in advance.

i dont think the trucks came with mast antennas..

 

[Matt69olds]

Use the dome light or cigarette lighter power feed, it will be an orange wire.

The antenna wire on a GM radio is a trigger wire, it only has power on it with the radio on.

 

[84 Silverado]

Matt,
I'm only looking to power the antenna when the radio is on. Which one of those wires will make that happen?

 

[fast 99]

Yellow and Gray on black plug are power, don't know which one is constant, key on.

 

[WFO]

The better aftermarket radios have a 12v remote wire that is only hot when the radio is on.
They are meant to signal an amplifier to turn on that has a heavy gauge always hot power wire, but would also work for your application.

 

[Drauka99]

Yellow and Gray on black plug are power, don't know which one is constant, key on.

yellow is switched power if I remember correctly on my 81

 

[Matt69olds]

Matt,
I'm only looking to power the antenna when the radio is on. Which one of those wires will make that happen?

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Pretty sure you will need to add that wire to your existing harness since GM never offered power antenna or amps in the trucks. I think this is the terminal, maybe Napa can get one?

I believe there is a wire pinout diagram stamped on the radio case.

 

[84 Silverado]

Thanks everyone!