I’ve posted some videos that might help if you are using the new Peco Twistlock Switch Machines and/or if you’re installing Peco turnouts. While the one video specifically mentions the Electrofrog turnout, many of the tasks/steps are applicable to Insulfrog as well.
Installing a Peco Twistlock Turnout Motor:
https://www.youtube.com/watch?v=FSNOtuKcnKk
Preparing the Peco Electrofrog Turnout for Installation on a DCC Layout