[quote name='mr ryles']Hows re-financing work? [/quote]
first off, you're getting assraped with the interest rate. i bought a new car on THursday and the rate from the WORST financer was about 9.75% SO, unless you have REALLY shitty credit, the rate you're at is worse than most credit cards. The only reason I went with the worst financer was because there was a $2000 cash-back if you went through them. By law, at least in NY, you only need to make 3 payments before refinancing. With the current interest rate about 6.5%, there's an extra $75/month for me on my payments with the shitty financer, but I got the $2000 cash back, so after the third payment, I'll refinance.
Call around and find what bank/credit union has the best rates. Usually credit unions have better rates. Call them and do a preapproval over the phone. When you go in, it's just a matter of verifying your identity and signing some papers. Make sure you have photo ID, valid license, proof of insurance with full comp/collision, and proof of registration of your car with you. You should also have the original selling price of your car.