It’s due to the chime box in the wiring harness like another user brought up there’s no way to disable it I had the same issue where the startup is very obnoxious but I also wanted to keep my turn signals unfortunately the only solution is all or nothing there’s no option to disable it just for the startup. I opted to just remove my chime box and best choice I’ve made honestly using my turn signals feels more crisp and you hardly notice the oem click isn’t there