Radio Antenna for '84 wont go up

[450knotOffice]

For all you Porsche experts out there. I don't have an owner's manual yet (previous owner didn't have one to give me) and I am not sure about how to get the antenna up. It's electric, I believe, but it just sits there in the full down position when I turn on the radio.

Can anyone please shed some light on this?

Thanks from a newbie.

[ubiquity0]

I probably can’t offer you much help as I replaced my original antenna (it would bind intermittently) with a new one, which now doesn’t work at all! Maybe there’s someone wiser out there that could help me as well?

There are 4 wires connecting to the antenna from the car (on my 82 SC at least).
The original antenna had an aerial wire, which was simple enough to swap over, 2 colored wires (red & blue I think) that again were easy enough. I think one of these is always live & the other is live when the radio is turned on. Then there is a ground wire which originally connected to a wire that disappears under the fire wall in the front trunk. My new antenna came with a very short ground wire fixed to it & instructions to connect the other end to a male spade conn. tab that was part of the antenna mount. I did this & taped the end of the now loose part of the ‘ground’ wire in the trunk.
This all should have been a simple enough exercise (no playing w/ connections at the head unit etc.) but now the new antenna is permanently down

[84porsche]

Is your stereo an original or an aftermarket replacement. The PO on my car put an in-line fuse for the power antenna that was blown. I replaced that and the antenna started working again. Check your stereo wiring to see if something looks out of place.