Yes, you can indeed wait for IRS communication, however, remember that if they send this two years from now and you owe taxes, you will no longer be paying $195, you will be paying a lot more due to penalties and interest.  You can complete the amendment once you have received your refund and pay at that time.  But either way is ok as you have three years to complete an amendment.  If you choose to do the amendment, you will be able in Turbo Tax by selecting the year you would like to amend in the link below.

https://ttlc.intuit.com/replies/3288565