I've heard about the Hemi tick but mine went away within 30 seconds after starting the Jeep. Yesterday I started up my Jeep and immediately noticed that the tick was WAY louder than usual. The noise continued (more so at low RPMs) the entire time I was driving around town, which has never happened before. Even weirder, suddenly road noise became much louder. A car in front of me went through a puddle and I could hear the splash and also what sounded like slight wind noise coming from the driver and passenger feet area. I was completely confused as both of these things happened out of nowhere. I have no idea what this could be, as illogical as it sounds I thought maybe a sound deadening panel had somehow come off? I'm calling my dealer but just wondering if anyone has a guess it this was completely bizarre.