The Southern Security Federal Credit Union is a auto loan from Southern Security Federal Credit Union. The ongoing APR is New Autos 4.50% to 17.99%; Used Autos 4.99% to 18.00%; Motorcycle 6.99% to 17.99%; Watercraft 6.99% to 17.99% (Conditions Vary). Loan terms: 12 – 84 month terms available.