Reporting question for Switch - Fender®, Pickup Selector, 4-Way Telecaster Mod

Product:
Switch - Fender®, Pickup Selector, 4-Way Telecaster Mod

Question:
Do you have to cut the pickup wire when you wire with this. I bought an Oak Grigsby 4 way switch and the instructions said I had to cut the pickup wire. Which I did and it works perfect. But I was just wondering.