Antenna Plug to Radio - Soldered Wire?

So I was in the process of removing the stock antenna and pulled the plug from the back of the original '73 radio and found a small uninsulated wire soldered to the plug. Seeing as I pulled a few inches of this thin wire from the radio; do I just cut it off, solder it to the new antenna and stuff it back in?

Bit perplexed because the spare '76 radio I have did not have a soldered lead to the antenna plug at the back of the radio.

 

A picture would be worth a 1000 words...

 

See link:



and I'm an idiot... after getting under there with a better light I can see that the female end at the radio came out with the male end of the antenna plug.

 

That's the jack, pulled right out of the back of the radio, Wow.

 

Exactly, didn't realize it until I went to take the picture.

Anyways hooked up the new antenna and it works alright.

 

In almost 50 years of servicing I haven't seen that one either...