2001 Infiniti I30 LEAKING

I have a 2001 Infiniti I30 that has just started leaking fluid from somewhere above the radiator. The fluid is red, there is a hose that runs accross the radiator that it looks like its coming from. Could there be a hose that need repairing that runs accross the the top of the radiator that would be leaking transmission fluid? And how should I go about repairing it. Its a small leak that I can only tell that is leaking when car is off.