We have 8 inch antennas I believe and I see there are 20 inch ones on ebay that say they'll fit 2010 prius with blue tooth. I'm thinking it should fine a regular prius but let me know if anyone knows I need a different one. I don't have bluetooth. I don't get good am reception and it would be nice to boost the hd reception I get. Maybe 16 inches is fine too.
