Car Loan with Co-signer?

I plan on buying a new car soon. I am 22 years old, have a full time job that I been at for two years which I am making over 35k at. I just started my credit history about a year ago with a secured credit card, I checked my report and they have been reporting. My question is if I cosign with my parents (which already have excellent credit) what will be the chances of getting a $17k car loan? Any idea of what the rate will be if approved? I'm uming a credit union will be more better for getting approved. Just don't want to go there and get denied for a loan. Honda is offering 2.9% for 48 months right now.