Schmitt Marine Throttle Knob - 1-1/2" - Gold Grooves [50025] Electrical | Charger/Inverter Combos or terminal L can be

or terminal L can be switched to battery minus

and you've got a great link between your amp and your battery that will protect your electrical system

Wiring and battery fault detection

It has a maximum pull of 300 lbs with a retrieval speed of 85 feet per minute

Schmitt Marine Throttle Knob - 1-1/2" - Gold Grooves [50025] Electrical | Charger/Inverter Combos or terminal L can beThrottle Knob 1 1 2" Gold Grooves Features: 316 Cast Stainless Steel 1 1 2" Throttle Control Knobs Fit Morse MY 3, MV 2, Twin and Single Controls with 3 8" 24 Threads Throttle Knobs are colored for Sight and Grooved for Feel Meets ABYC Specifications