The front and rear door speaker size for Ford Aspire is 6.5''. You can install any of your favorite brand's speakers of this size by just fitting them to the preinstalled wiring of the music system. A decent set of 4 speakers of this size costs around INR 6,000 and you may even get a single speaker with excellent quality for the same price. The new Aspire comes with three engine options and offers the best in class safety with 6 airbags in the topmost trim.