If any of you V6 guys are looking for an upgrade to your stock 80-amp alternator, the Highlander has a 130-amp alternator option with the towing package. I installed one in my 1994 V6 Camry today and it was a direct bolt-in. My dimming light issues have been solved. Best of all, it was only $60 shipped with a 6-month warranty. Just go to www.car-part.com and search for a 2003 Highlander alternator, then select the V6 130 amp option. For you 5S-FE guys, the I4 Highlander alternator may work, but I'm not entirely sure.