MTX Ford Explorer/Mercury Mountaineer/Mazda Navajo 1991-2001 Thunderform Loaded with 10 Inch Woofer and ... Car Speaker "need 1988 gmc truck wiring" Questions

...your car wiring.... Hi I'm like to no about my radio on my 1988 gmc truck a 1500/v8 2 wheel drive need some infos of the old radio wire I'm using the same wire for the new radio need to no color ...