Can anyone help me out? I'm simply running four speakers and no amp or anything YET. But i just wanna plug my antenna into my JVC head unit. What are all these and which is the antenna (It was a disaster in there when i pulled out the already installed JVC, I'm just tryin to straighten it out). i assume some are for the factory amp? Sorry for the stupid question.

*92 Sc400, no idea what factory stereo was in it

 

I believe one is just an extension. Only one should plug into your jvc unit cant remember if it's the bigger or smaller plug.
just try both and whichever fits should be it.

 

all four of those are coming out of the dash. the two smaller ones do have extensions though the bigger ones one male and the other female, i think the male is the antenna? but what are the other three then?

 

I know that my IS had two antenna plugs when I did my aftermarket HU conversion. One was the regular antenna and the other was the antenna amplifier. Reception sucks with just the regular antenna plugged in, but no way around it in my install.....

 

i may just try and run a new one when i replace the broken antenna..