CrashOverride
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- 2015 Mustang GT
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I think I have this figured out correctly, but I wanted to double check. I'm wiring up an Alpine KT-445U amp behind/around the head unit. Device itself is fused at 15 amps. I have a base model, so I plan on using the unused "amplifier" fuse (With a fuse tap) near the passenger footwell. I can only find add-a-taps with 6" of 16 gauge wire. I want to be able to have 10 feet or wire to be on the safe side for my calculations. From what I've read, one should stay under 5% voltage drop at intended ampere @ distance.
My plan is to solder a lower gauge wire (Say 12 gauge) to the 6" 16 gauge pigtail from the fuse tap.
I ran the ampacity/v drop numbers and they looked like this:
6", 15a, 16awg = 0.06v drop (Using 12vdc reference)
9.5', 15a, 12awg = 0.45v (Also @ 12vdc)
0.51v drop on 12vdc = 4.25% which should be under 5% and okay?
Although this is a bit backwards of a normal install, are my calculations correct? I don't think I'm going to fry the 6" of 16-awg cable because it is safe for the respective distance used...
FWIW the power input wires on the amp are something like 18 awg.
Thanks!
My plan is to solder a lower gauge wire (Say 12 gauge) to the 6" 16 gauge pigtail from the fuse tap.
I ran the ampacity/v drop numbers and they looked like this:
6", 15a, 16awg = 0.06v drop (Using 12vdc reference)
9.5', 15a, 12awg = 0.45v (Also @ 12vdc)
0.51v drop on 12vdc = 4.25% which should be under 5% and okay?
Although this is a bit backwards of a normal install, are my calculations correct? I don't think I'm going to fry the 6" of 16-awg cable because it is safe for the respective distance used...
FWIW the power input wires on the amp are something like 18 awg.
Thanks!
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