I am getting a buzzing sound whenever my headphones are plugged in. Nexus 6

[Paul1366]

Hey all. I've got a Nexus 6 and I'm getting a load buzzing sound whenever my headphones are plugged into my phone as well as distorted music. I've googled the issue and done everything it says but still not luck. At first I thought it was something to do with the Google now voice detection but after deactivating that I still have the same issue. I've tried different headphones and they have the same problem, I've also tried Bluetooth headphones and they work fine so it much be something to do with the jack itself. Anyone had and fixed this issue or know of a way to. Thanks