The only places i seen to buy were: SLKfans.com and http://www.sprintbooster.gr/en/index...tpage&Itemid=1. But on the sprint booster site, I can't find where to buy, and I heard ALOT of negative reviews on SLKfans. so my question is. What site can i buy them from, and what model do i need to a '04 auto?