Ford 2003 Thunderbird Owner's Manual page 135

Roadside Emergencies
Note: In the illustrations, lightning bolts are used to designate the
assisting (boosting) battery.
2. Connect the other end of the positive (+) cable to the positive (+)
terminal of the assisting battery.
3. Connect the negative (-) cable to the negative (-) terminal of the
assisting battery.
135
2003 Thunderbird (tbr)
Owners Guide (post-2002-fmt)
USA English (fus)