Unknown Cobra trailer fitting

Can someone please identify for me what the purpose is of this hole at the front of my 80s vintage cobra trailer. You can see a photo of the front of the trailer at:

http://www.freewil.com/WebGalleries/photos/trailer.jpg

On Sunday, October 13, 2013 10:04:44 PM UTC-5, Steve Freeman wrote:
Can someone please identify for me what the purpose is of this hole at the front of my 80s vintage cobra trailer. You can see a photo of the front of the trailer at:



http://www.freewil.com/WebGalleries/photos/trailer.jpg

That looks non-standard to me. At least, my 80's vintage Cobra has no such hole. Perhaps it was added for a charging cable? It looks like a convenient ingress/egress point for living things you don't want in your trailer, so if it were me, I would cover it up.

-Andy

At 04:14 14 October 2013, AJM wrote:
On Sunday, October 13, 2013 10:04:44 PM UTC-5, Steve Freeman wrote:
Can someone please identify for me what the purpose is of this hole at
th=
e front of my 80s vintage cobra trailer. You can see a photo of the
front
=
of the trailer at:
=20
=20
=20
http://www.freewil.com/WebGalleries/photos/trailer.jpg

That looks non-standard to me. At least, my 80's vintage Cobra has no
such=
hole. Perhaps it was added for a charging cable? It looks like a
conveni=
ent ingress/egress point for living things you don't want in your
trailer,
=
so if it were me, I would cover it up.

-Andy

A place to put the electics plug to stop it getting full of water when not
in use?

Originally Posted by Nigel Pocock[_2_]

At 04:14 14 October 2013, AJM wrote:
A place to put the electics plug to stop it getting full of water when not
in use?

I think that's it. It's the size of the 8 pin round RV plugs, and has the slot just like the plugs do. I use a 4pin to RV adapter for my truck, this guy probably did too.