2002 sebring speaker wiring?

I have reviewed the diagrams for speaker +/- wiring, but they do not match what I see in my car.  How can I tell them apart and why do the factory speakers just have a doggone +/- sign on the terminals???  Too easy I guess.  Is a black stripe on one and red on the other too difficult?

Anyhow, both wires coming to each location are of the same color with a different stripe. LF Green, RF Blue, LR White and RR ??? (didn't bother looking after the first 3 didn't match my information at all and I was no closer after pulling 3 speakers than I was before I began).

Is there a way to find out if there is not a diagram that matches the wires hanging out of my door?

FYI this  vehicle is a 2002 Convertible, Limited with cassette, and 4 disc changer. Also has the amp under the seat and I believe 6 speakers, 2 tweeters up on the dash and 4 6x9s (both doors and both rear side panels).