Car radio installation?

i need to install a jvc kd-s5050 radio into a o1 ford ranger. the problem is that all of the wires coming from the truck and from the radio are all cut. i have the battery,the ground, and the hot wire hooked up. the only problem i have is that i can't figure out what color wires connect to what to get the speakers working. i've been trying to get the answer to this question for two months. please help a this texan finally get the answer i've been looking for!!!!!!