Amazon.com: JBL GX642 4" X 6" 2-Way GX Series Coaxial Car Loudspeakers : Electronics
Amazon.com: JBL GTO Series Premium 4 x 6 Inches Co-Axial Speakers Pair with Patented Plus One Woofer Cone, Silk Dome Tweeters - Set of 2 Bundled with Earbuds : Electronics
GX642 | This 2-way custom fit speaker fits into the space for the 'factory speaker'