I have read the discussions about using external speakers on a 396XT. Here a question about using one on a BCT 15X (as I am thinking about picking one up). According to the specs, this unit has an 'EXT SP' jack on it for the 3.5 mm plug in mono.Giving the fact that it has a dedicated external speaker jack, and as it it a larger-sized base/mobile unit, would it be a good deduction that a non amplified external speaker could be used on it? I would imagine that you can use an amplified speaker if you wanted to spend the extra $$. And I don't want or need to see any of the 'Magic Uniden Smoke) escape suddenly from a new radio! Thanks for any insight you may care to share.