Focal ISU690 Satellite Radio Blue illuminated button can be

Blue illuminated button can be installed in the dash

In-line 6dB/octave tweeter crossover filter

Provides flat audio output for a solid audio foundation

channel splitter

Focal ISU690 Satellite Radio Blue illuminated button can beShallow speakers 2 WAY SEPARATE WOOFER KIT: 690 MM This ISU690 2 way separate kit is the result of research into the constraints associated with using original fit locations. Truly compact, powerful and "fits anywhere", the ISU130 makes it possible to improve on audio systems without major technical modifications to your vehicle interior. Its very compact form, achieved by reducing its housing depth, and its built in filters mean that this kit is easy