I'm not familiar with King Jack.
My booster is in a closet. Flat brown plate with only green light and small push button on front. The amplifier circuits, 12 volt connections and cables (3) are on the back of that plate. Inside the wall. Mounted alongside the AV distribution panel.
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U.S. Coast Guard retired- 1956-1985
Pensacola, Florida
2016 Siesta 24ST
1972 Moto Guzzi Eldorado
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