where does this hose go? :/

[straight_fresh]

hey all, i purchased a samco hose kit for my mk1 about a month ago from the good people at bigboystoys-uk.com (excellent service and cant reccomend them enough!) they told me i might have a hose left over, one which goes to the small square oil cooler found on european models (i think) iv figured out which one is the top and bottom radiator hoses, theres one from the water pump to the hardline that runs past the dizzy and to the end of the head, another which looks like it goes from the top of the water pump to the bottom of the fitting that the top radiator hose goes to, but it looks like it mat need some cutting, and then there's a Y section hose that i cant see where it goes! im assuming it may be the oil cooler one but thought id check with you more knowlegable guys, all the hoses are split and rooted so i chucked em when i started stripping the car unfortunately, sorry for my explinations aswell, brains not functioning all that well atm :/ link below, couldnt figure out how to get a pic in the thread sorry

VW Golf Mk1 - Volkswagen - Samco Sport - Engine Detailing - Home - Amber Performance

to clarify-
middle and top right = radiator hoses
bottom = water pump to hard line
top left = water pump to under top rad hose on block
bottom right = ????

cheers,
tom

[GRN_VAGN]

Yeah pretty sure that bottom right one goes to oil cooler.
And your correct about the others.