I'm happy to be a new owner of a used 2019 RT-L with 20k miles. I like most things about it, though the radio is pretty cheap and will be replacing that. But my question is regarding engine noise. The engine runs perfectly and accelerates smoothly but it makes a clicking sound at idle whether hot or cold. Brought it to my local dealer who said it didn't sound unusual to him. I'm used to vehicles that are pretty quiet when idling. Is this normal for this vehicle?