"PIONEER CAR CDME300 Wired Marine Remote Control for MVH-MS512BS or MVH-MS310BT FEATURES : IPX7 Rated: Yes. Outer Diameter: 63 mm 2-1/2-in. Cutout Diameter: 48 mm 1-7/8-in. Extension Cable: Included 25 feet. Mounting Hardware: Included. Compatible Headunit: MVH-MS512BS MVH-MS310...