It's a mistake to think that you will be a great auditor "solely" because of your sound financial reporting or accounting knowledge. From our knowledge of the audit practice, we can comfortably suggest that you look beyond "just" financial reporting or accounting alone. Auditing will demand more from you! Here other areas you need to pay some attention to:

1. Tax and recent updates on tax
2. Laws and regulations that affect your client's business.
3. Understanding processes and controls
4. In-depth industry knowledge
5. Some knowledge of finance and financial management
6. People management
7. Teamwork
8. Some understanding of IT
9. Creating, Building and Nurturing valuable client relationships
10. A good balance between being technical and being social

You can add yours in the comment section.