I know who the major issuers of auto loan-backed bonds are, but those issuers issue many different types of bonds, right? (Ally Financial, Ford Credit, Santander, etc) How do I find their auto loan (to consumers)-backed bonds, or at least, how do i tell what a bond is backed by?
for instance, how would i find the bonds issued by Ford mentioned in this article -
http://www.bloomberg.com/news/print/2012-07-18/ally-sells-731-million-of-auto-loan-bonds-as-issuance-surges.html

