ok, black is ground yellow is power red is memory power (ignition power, 5v) the color-pair cables should be speaker cables (my guess is grey & purple pairs for front, green & white for the back, but just a guess) blue could be power antenna or other goodies
yea the black is ground, yellow power and red mem power, then the grey is right front and purple is left front, green is right rear and white is left rear.....if u hook those up then u shuld be in shape........