If the blue crimp goes to one side of a circuit where does the negative side go?

You probably know the answer already but this only to provide positive 12v. The negative (ground) cable will be on the item that you are trying to power up. That goes to any metal surface on the car or a negative cable if you can find one.

There are 3 different fuse sizes in this kit. One of them should fit about any car or truck with a modern fuse box. Older, vintage cars used the old glass tube fuses, so not them. I'd take a $10 chance and try them.

Am looking at the small fuse since that what my vehicle is compatible with, do you guys include 10 amp fuses?

Idr if they had 10 amp fuses but you can get them at any local parts store. They came with some small fuse adapters and some large fuse adapters. They work fantastic. Ill never splice into a line again.

Will this work for an acura mdx 2017?

It comes with 3 different size fuses so it should work for you unless you have an oddball fuse box. Check your fuses to see which one you need. I used them for a 2012 Mustang.

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12V Car Add-a-Circuit Fuse Adapter with Standard and Mini TAP Profile TAP Blade Fuse for Cars Trucks Boats, Blue, Red, Black,10 Pack Fuse Holder-3 types, 50040R

Product ID: 306598666

Details

AC adapter current
5 Amps
Brand
Nilight
Material
Nylon Plastic
Mounting type
Frame Mount
Voltage
12 Volts

⚡5 Amp max current rating for reliable power

🔌Dual-slot fuse holder for dual circuit protection

🔧No wire cutting needed, plug & play install

Description

🔋 Power up your ride without the hassle—fuse in, stand out!

DURABLE SAFE - Crafted from premium nylon plastic and thermoplastic-insulated wire for melting resistance and excellent conductivity.
DUAL CIRCUIT DEFENSE - Protect both existing and new circuits simultaneously with the innovative dual-slot fuse holder.
VERSATILE POWER BOOST - Perfect for powering LED strips, dash cams, GPS, car alarms, and more—upgrade your ride’s tech game instantly.
EFFORTLESS INSTALLATION - Add power to your accessories without splicing or cutting wires—just plug and play.
UNIVERSAL COMPATIBILITY - Includes 3 fuse types to fit Korean, Japanese, US, and European vehicles seamlessly.

The Nilight 12V Car Add-a-Circuit Fuse Adapter 10-pack offers a universal, no-splice solution to safely add new electrical accessories to your vehicle’s fuse box. Featuring dual-slot fuse holders, 5 Amp current rating, and compatibility with multiple fuse profiles, it ensures durable, easy installation for cars, trucks, and boats. Ideal for powering dash cams, LED strips, and more, this kit combines premium materials with versatile fitment to keep your circuits protected and your upgrades seamless.

Specifications

AC adapter current	5 Amps
ASIN	B07TBRM45F
Best Sellers Rank	#20,668 in Automotive ( See Top 100 in Automotive ) #27 in Car Fuse Holders
Brand	Nilight
Brand Name	Nilight
Color	Blue, Red, Black
Country Of Origin	China
Current Rating	5 Amps
Customer Reviews	4.6 out of 5 stars 4,796 Reviews
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00812227032050
Included Components	10 Pack Fuse Adapter
Item Type Name	Nilight 10 Pack 12V Car Add-a-circuit Fuse Adapter with Standard and Mini TAP Profile TAP Blade Fuse for Cars Trucks Boats,2 Years Warranty
Manufacturer	Nilight
Material	Nylon Plastic, Thermoplastic-insulated Wire
Material Type	Nylon Plastic, Thermoplastic-insulated Wire
Maximum Current	5 Amps
Model	50040R
Mounting Type	Frame Mount
Mounting type	Frame Mount
Part Number	50040R
UPC	812227032050
Unit Count	10 Count
Voltage	12 Volts

Reviews

A**I

Fast delivery and good quality

7.11.2020

K**D

Its not for ram 1500 Rabel

It’s not compatible with 2024 dodge Ram 1500 rable Fuse box

27.01.2025

E**2

Non sempre fa' contatto

Funziona, però l'innesto nella fusibiliera non è solido, cioè dipende dalla posizione se fa' o meno il contatto

20.04.2026

A**Y

Very happy with item and seller!

Very happy with item and seller! Quick delivery also.

13.11.2022

م**I

محول اضافي بمنصهر دائرة كهربائية للسيارة

بائع ممتاز - توصيل سريع وسلعة ممتازة

6.09.2022

A**R

good product

works like it should. good product. Worth it! 18x less expensive than napa version

8.05.2026

M**L

100% recomendado

relación calidad precio 100% confiable

21.11.2025

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