Trying to intergrate jvc kd-s630 with old japanese toyota 4x4 1991 stereo system. difficult because of differnt color coded wires and oher small problems. trying to find a map as to which jvc kd-s630 should be the hardline to the battery, red or yellow? in summary, just trying to get a map of the jvc system so i can work out the rest of the kinks. thanks