Ripping apart the dash is a pain... the first or second time. After that, it becomes routine. I replaced the radio, then commenced to eliminate all the rattles and squeaks coming from the dash. They told me mine was one of the quietest roadster dash boards they every heard (except when the TMPS alert is going off I suppose). Eventually you learn to not even bother replacing the passenger airbag clips. Mine is held on with Velcro. What is a "Tesla Tattler" and "OVM"? Can you provide some details?