The GR Yaris is a compact performance machine. Most comes with JBL sound system. Great car as such deserves a great sound system. However, the most expensive package is not automatically the best sounding system. We recommend on the complete sound system, DSP amplifier, speakers, woofer installation and tuning. Goal: To create a system that sounds natural, detailed and enjoyable inside. Things to note: Work with the original head unit Fit within limited installation location