Ignoring the bad wiring job, was using a splitter box to split the wire from my battery into two wires for my sub-amp and speaker-amp, an acceptable means of powering both amps? :
Splitter Wires – Comet Pinball, Inc.
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Why is the ethernet cable running into my room split into two like this? : r/HomeNetworking
Cat cable split into two different jacks. What am I looking at here? : r/HomeNetworking
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4 Ways to Connect a Wire Without Soldering - Instructables
:max_bytes(150000):strip_icc()/SPR-how-to-wire-split-outlets-1152331-step-07_30045-bc10604632ce40e6a1a4bd03d7bc7996.jpg "How to Make a Split-Wired Receptacle to Double Power")
How to Make a Split-Wired Receptacle to Double Power
Working with Wire - SparkFun Learn
How To Splice Wires Like A Pro - YouTube
:max_bytes(150000):strip_icc()/how-to-splice-electrical-wire-1821560_07_wire_connection_1432-a1ee3a6ac9574de7bfbae6cc58072fa5.jpg "How to Splice Electrical Circuit Wires")
How to Splice Electrical Circuit Wires
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Properly "Splitting" Wires | Bob Is The Oil Guy
What is the technical term for the two wire cable that is used in 2 prong, 3 outlet extension cords, fans, and small household electronics? - Quora
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Wiring a Split-Tab Receptacle - Fine Homebuilding
How to Splice Wires: 7 Easy-to-Follow Steps — Bob Vila
How to Wire a Double Switch (with Pictures) - wikiHow
:max_bytes(150000):strip_icc()/SPR-how-to-wire-split-outlets-1152331-hero_30049-c7c839a66ad844cabc4cf30672dd40ae.jpg "How to Make a Split-Wired Receptacle to Double Power")
How to Make a Split-Wired Receptacle to Double Power
