Hi  sushanbox-gmail!

If you are using TurboTax Online you can do the following:

1.  On the navigation on the left side click RRSP -> RRSP Contributions to be carried forward

2.  On that screen you should see the following text "RRSP/PRPP contributions you are deducting for 2022".  You can enter the 6k amount on that line.  I've included a screenshot as well.  

Hopefully that helps!