My USB with MP3 files has been plugged in since a month after buying my G70 9 months ago. No problem.In the 2019 multimedia system manual on page 2-11, it says: "Connect the USB device after turning on the engine. The USB device may become damaged if it is already connected when the ignition is turned on."
Have any of you repeatedly started the engine with the USB plugged in without ill effects? I wonder how many cycles of alternating stress the USB port can take of me wiggling the stick in and out to follow this guideline.