I have a Mazda OEM spare-wheel-well subwoofer I removed my my old (dead) 2003 P5. I just bought a 2014 3 i Touring hatchback. Does anyone know if there is a way to connect the subwoofer to the i Touringís sound system? Itís not the full-blown infotainment system that is common today, but its predecessor that was stock on most 2014 trim levels.