This redesigned mounting kit is designed for use with all models in the Humminbird Helix 7 series. Simple in-dash installation of your Helix 7 unit includes cutting the mounting hole in your dash, installing the control head, and connecting the cables. Constructed for long-lasting durability in a marine environment. Mounting instructions are included. Note: This optional mounting kit is not optimized for metal in-dash installations. Durable marine-grade construction Designed to resist corrosion for long-term use | Humminbird IDMK H7R Redesigned In-Dash Mounting Kit For Helix 7 Series