What color is the speaker wire for rear speaker in a 97 expedition

Car Audio Rear Speakers Size: 6″ x 8″ Speakers Car Audio Rear Speakers Location: Rear Doors Left Rear Speaker Positive Wire (+): Light Blue/Black Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Purple/White Right Rear Speaker Negative Wire (-): Light Blue

I have a 1997 ford expedition Eddie Bauer and I'm trying to install the new speakers in the rear doors I'm trying to find out what exactly the hot and cold wires are I keep looking but the wires are different colors