Radio antenna or other ideas for that hole

A permanent stainless antenna would look period correct or a retractable ( flush) power antenna will suffice too.

How 'bout repurposing the hole to fly an American flag? 

@Napa Paul posted:

How 'bout repurposing the hole to fly an American flag? 

Applauso !

In racing cars of the period an external primary battery disconnect was required. My Spyder had 2. One on the dash and the other on the fender near where your antenna is located.

A reproduction Hirschman Red Tip antenna would be appropriate - about $50.

How about adding a right rear view mirror there?

Wolfie wrote: "How about adding a right rear view mirror there?"

EXACTLY!  

Although Jim's idea of the safety switch, whether it is wired in or not, is pretty good, too!

The prior owner put the antenna on the wrong side. It should have been mounted on the driver side of the vehicle. However, I do like the reproduction Hirschman Greg posted above. That being said if you actually want to use the antenna it will have to be grounded to a metal part since we're driving fiberglass cars.

Or cover it with a mirror.

@Napa Paul @Alan Merklin Or German flag?  Or SOC flag??

@Jim Gilbert - Madison, Mississippi Huh, interesting, had no idea.  Mine's gone in the winery cruiser direction, but that's a sweet setup.  I wish I had an excuse for those dash timers.

@Robert M Hah wrong side, didn't realize that, so many deviations on this car...  Thankfully the current antenna has a grounding wire routed, not that I care all that much, but of course I'd rather it be functional if I do get a real antenna.

@WOLFGANG Good point, but I already have a side view mirror there, it's just right behind my phone in the picture .  Do you mind linking that Hirschmann model?  I found this one on Stoddard for $125 😩, I'm guessing you know of a less expensive vendor.  

For non-Hirschmann, there's this Retro Sound one for ~$30 and this CJ Pony Parts one for $17.  If they require cutting the antenna because they're not fully retractable, might as well get the cheapo CJ Pony Part (I know I know kludgy, but it's primarily ornamental for me).  But the Hirschman red tip would be a nice touch with my red paint, is period correct, and fully retractable, so it's calling my name.  Apparently I'm not that superficial.  Damn it!

Here you go Sean. 

https://www.ebay.com/i/3630483...kdMcnqBoCEEgQAvD_BwE

Robert, thanks.  That's a pretty good eBay store, saved it to my personal vendor list.  I almost just click Buy It Now but then realized that I probably don't think have enough length under the fender (the Hirschmann requires almost 10").  Not only that, but there's a shoulder structure of the fiberglass that might be in the way.  I don't know, maybe the hole was drilled 1 cm in the wrong direction just by chance, or maybe it's supposed to be there and it's me who doesn't get it.

I can probably solve the shoulder issue by opening up the hole into the rear direction by a bit and/or shaving down that shoulder.  But that doesn't solve the length clearance issue...

Is anyone aware of "stub" style antennas like the form factor of the one I have?  Maybe Hirschmann made those too and I need to do some digging.  It's either that or back to the idea of CJ Pony Parts cheapo that I just snip, and put the red tip I already have on top of it.  The "cherry on top"