im helpin my friend wire some 6x9's in his chevy cavalier it's a 96 or 97 or around that year. the rear right is light blue and dark blue. the rear left is brown and yellow. which ones are positive and negative?

right rear:
Light blue = negative
dark blue = positive

Left rear:
Yellow = negative
brown = positive

yep i had em *** backwards, lol time for a fix it.