Crimp Connector

Consider a copper wire is connected to a battery via an aluminum crimp connector. Would you expect the copper wire, aluminum connector, or both to corrode? Why?

Hint
Which component is anodic?
Hint 2
Are there any components that act as a sacrificial piece?
Relative to copper, aluminum is anodic, and will corrode as a sacrificial piece to protect the copper wire. Thus, only the aluminum connector will corrode.
Only the aluminum connector will corrode.