Blocked from joining the Potters by a UK work permit panel, USA international Agudelo initially signed for FC Utrecht on-loan last season.
Stoke were again denied their work permit application over the summer, forcing them to release Agudelo from his contract.
The striker signed for Hannover 96 in June, but is already attracting rival transfer interest.
Tz says 1860 Munich are in contact with Hannover about a deal for the former New England Revolution striker.
For the big stories and the banter follow us on Twitter: @tribalfootball