at which end? the radio: just remove it from the dash. the speaker end: take off the trim panels (and if it has speaker remove them) there will be a plug there in the hole for the speakers.
as far as in between goes, remove the sill plate on the drivers side and there should be a bundle of wires under it. not to sure of wire colors off hand, but I could look that up tomorrow for ya (actualy at this point it would be later today)