1993 Cadillac Eldorado Owner's Manual - Page 239

4.9 Liter 4.6 Liter (Northstar) . *. , c 7. Connect the red positive(+) cable to the positive (+) terminal of the vehicle with the dead battery. 8. Don't let the other end touch metal. Connect to the positive (+ ) it terminal of the good battery. 9. Now connect the black negative (-) cable to the good battery's negative (-) terminal. 10.Don't let the other end touch anything until next step. The other the end of the negative cable doesn't go the dead battery. It goes to a to 225