Interior Fuse Box Location: 2014-2018 Subaru WRX STI 2016 The video above shows how to replace blown fuses in the interior fuse box of your 2016 Subaru WRX STI in addition to the fuse panel diagram location. Electrical components such as your map light, radio, heated seats, high beams, power windows all have fuses and if they suddenly stop working, chances are you have a fuse that has blown out. 2016 Subaru WRX STI Fuse Box - Subaru Parts Deal SubaruPartsDeal offers the lowest prices for genuine 2016 Subaru WRX STI parts. Parts like Fuse Box are shipped directly from authorized Subaru dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options.