Bennett AR512 Auto Tab Retractor - 12V [AR512]Auto Tab Retractor Automatically retracts tabs when boat? s ignition is turned off. Trailered or dry storage boats have added defense from trim tab damage with them "full up" during hauling, trailering and storage. Ensures trim tabs are all the way up every time boat is started if boat is not equipped with trim tab indicators. Easily installed under the instrument panel, the ATR connects to the trim tab control and engine ignition switch. WARNING: