The Edge EAS Shift-On-The-Fly (SOTF) is a tuner accessory that would allow you to change your custom tunes on-demand using the Edge Insight CS2 or CTS2. Instead of going through the hassle of drilling a hold on your dashboard to install a separate switch to control your custom tunes, you can just connect the Shift-On-The-Fly (SOTF) cables to the Insight CS2 or CTS2 monitors to change your tuning right there on the screen.
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