'94 Corsica Head Unit Install

My buddy asked me to put a head unti in his car i said i would and i ran into problems the wires dont match up to the head unit he has its a jensen head unit and the red wire is the power for it and the existing radio has no red wire for power any idea i also need to kno where the fuses are in his car when i began to wire the unit in wit the ground and accesories i the i cut the power wire and shorted it and blew the radio fuse i need a full list of the wires in the radio which colors do what and i also need to know which fuse in and where the fuse box is

thanx all

i used this when i installed my headunit in my 94 corsica. http://www.installdoctor.com