How can I make a hole without a broken grid

Hi guys! I'm just starting out in 3D and am currently trying to make my first subdiv electronic guitar project. I had already made the base of the guitar and moved on to modeling the jake plate, but then I realized that I could not make a hole (I tried to make it only boolean) without breaking the grid of the base of the guitar. Are there any other ways to make a hole in the base of the guitar or what to do in such a situation? Thank you in advance for your reply!

https://preview.redd.it/tf21vpznsqce1.png?width=972&format=png&auto=webp&s=65a98a23046840d82c0af3b8922f3931df37e9ab