Does a 92 Honda Civic LX have wiring for rear speakers, even if the...

...speakers don't come stock? I am trying to put some speakers into my Honda, I'm tired of the very poor stock ones. I can replace the front ones, but got a second set of speakers free when I bought the stereo. There is a mount for a rear set of speakers, and the wiring adapter that comes from the car had wires for rear speakers, even the stock stereo had a fade adjuster. But the trick is, can I install rear speakers without having to run wires all the way to the back?

I can see a couple wire bundles, but can't figure out how to get that top deck piece out to get a closer look at them, nor can I manage to see the wires from the underside. I tried the Haynes manual but it was of little to no help. Thanks anyone, and everyone.