My speedo is skipping after erwiring the 53.Had it out [speedo] and having noticed the nut was lose retightened it.Thinking I striped the end of the cable it looks good, would cleaning help or do I go with a new one. And does Napa have them??? Thanks Paul, PS I changed the Ground wire and New Battery, with a disconect and always, the advice here is just the best thanks to all.