Specific speakers and speaker sets for the BMW 1 (E81, E82, E87, E88) vehicle , year of manufacture 2004 to 2013 (1st generation). The speakers have the same dimensions, mounts and connectors as the factory speakers, which allows for simple assembly and integration into the existing system. We recommend Audison speakers, which are the most advanced in terms of sound and also offer a complete sound system solution using a high-end amplifier with a DSP processor, without any intervention in the car's original electrical installation.