How do I Link one iTunes to two IDs
Just looking for help my wife and I have devices can I link our IDs to one iTunes
You can have more than one account authorised on a computer's iTunes (via the Store > Authorise This Computer menu option), and you can sync more than one device to the same iTunes. If that is what you want to do and you currently use different computers to sync to then it's best to copy the content over from the second computer and not re-download it from the store (re-downloading past purchases can tie a computer or device to an account for 90 days) : copying content between computers.
Or am I misunderstanding what you want to do ?