Stereo Wiring

Hi
Wouldlove to know what the wiring colours are on the original stereo! We have bought a new one to install but cant work out the colours!
Yellow
Brown/red
Yellow/blue
Orange/Green
Blue/red
red/brown
orange/blue
white/blue
blue/black
green/black
red/black
brown/black

I just need to know what speaker / power they are!
Thanks