Check your local bank or credit union for the current rates they have. With your credit in the 700's you should have no problems refiingCheck http://www.bankrate.com for the best rates in the nation.
Capital one has a auto refi department and last i checked had some decient rates. so look them up too..
Also something to consider, if you ow more on the loan that what they new bank will refi for you will have to make up the difference so inquire with the current lender and see how much is still on the loan and then shop around to see what you qualify for.
Transamerica Financial Advisors
Insurance, Investments, Retirement, Advisory Services
Ca Lic# 0G23657
http://www.sevafinancialadvisors.com