One way to narrow down where a questionable wire lands, is to ascertain what and where does it reach to, also type/size of connector for attach to match. Giving us what color/stripe the wire is, as to your query would be beneficial, also if you can, a couple of clear pictures posted can be helpful . Somebody then, can help you out without guessing. Often the quality of answers can not help but mirror, the clarity of the question asked.