anything to address in this LED & car project design? Answered
I'm in a time crunch for a LED light strip + car project and stuck with a mix of different lead/hook up wire types and was wondering if there's anything in my design (below) that I absolutely must fix/address:
 12v car battery <-- terminal fastened to 22 gauge solid copper hook up wire SOLDER to 18 gauge stranded silver colored lead --> 125V 10A AC switch
NOTE: The battery to switch wire run is about 8 feet and the wire is sandwiched in Kapton tape, routed around the engine block's walls into the car's cabin where the switch resides
 125V 10A AC switch <-- 18 gauge stranded silver colored lead 3 WAY SOLDER to two (2) 18 gauge solid silver colored leads --> two (2) 12V DC to 5V DC 5A regulators
[3a] 1 of 2 DC to DC regulator <-- 18 gauge solid silver colored lead 3 WAY SOLDER to two (2x) 22 gauge solid copper hook up wires -->
[3a1] <-- FASTENED TERMINAL --> LED microcontroller
[3a2] <-- SOLDER to contact --> RGB LED light strip (WS2811), 1st half of array
[3b] 2 of 2 DC to DC regulator <-- 18 gauge solid silver colored lead SOLDER to 22 gauge solid copper hook up wires --> RGB LED light strip (WS2811), 2nd half of array (one regulator can't power all the LEDs in the array so that's why I'm splitting the power to them)
NOTE: Both regulators' wire run (3a2 and 3b) to the LED strips is about 6 feet, the wire is also sandwiched in Kapton tape, routed around the engine block's walls and go from within the car's cabin to the front of the car essentially.
Is there anything about this design that really needs changing (especially regarding the mixing of wire gauge and physical makeup)?
Thanks in advance