What causes shaking or vibration in the Audi 80 steering wheel?

I've been noticing a shaking or vibration in my Audi 80's steering wheel lately. It seems to happen at higher speeds. What could be causing this issue and how can I fix it?

The most common cause of steering wheel shaking or vibration in an Audi 80 is unbalanced wheels. Make sure to get your wheels balanced by a professional tire technician and the issue should be resolved.

Another possible cause could be worn out suspension components. Check your shocks, struts, and other suspension parts for any visible damage or wear and replace them if necessary.