^^ This.Sounds like your compressor kicking on/off... I've never sat with the radio off/windows open to see if it is noticeable, but I do know that on some vehicles, it can get pretty loud.
Can you guys try this and confirm backthanks i
The A/C compressor on all vehicles makes a loud tick. It happens when the compressor kicks on. Some make a tick when it kicks off. The volume varies by vehicle/compressor.It's completely normal. :thumb: