Boss 800n 4 Channel Amp

Hi peeps,
I'm dropping a line here to see if someone can answer my question as a last
resort.
I have a Boss 800n Amp, i removed it from my old car about a year ago ( fella
thew away the instructions 'cos we're never gonna need them again' !!) and now
i'm ready to re-install it... I can just about remember all the other fittings
except the high output lead configuration, 4 short leads from left to right,
green grey blue and white !!! ( can't use low because i don't have the
connection in the back of my stereo ) If anyone can help me out i'd appreciate
it...it's made me dizzy trying to remember the way to do it...
Thanks in advance

Tracey