which color do I use for 14 gauge speaker wire?

Red is what is used, but I never use wire nuts on speaker wires. I use 2 piece butt connectors. It keeps the wires straight and I can take it apart when it's time to replace the speakers.

what color do I use for 12 gauge speaker wire?

For #12 cu wire the yellow is recommended, but that's for alternating current. I personally don't use wire nuts for speaker wire. I use inline splices. They're easier to hide, especially if the wires are gonna go to the back of the vehicle. An online splice is almost a must if the wires are gonna go under the carpet or door jams. Just my personal opinion.

Are these waterproof?

They do make waterproof connectors but the ones I bought are not.

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180 PCS Wire Connectors, Insulating Insert Twist Electrical Wire Connectors with Spring, Portable Wire Caps for Quick Connection, Colorful Wire Caps Electrical

180 PCS Wire Connectors, Insulating Insert Twist Electrical Wire Connectors with Spring, Portable Wire Caps for Quick Connection, Colorful Wire Caps Electrical

Product ID: 228019418

Details

Color
Grey Blue Red
Connector Type
Twist
Contact Material
Copper
Insulation Material
Nylon
Terminal
Screw Terminal

⚡600V max voltage rating

🧩180 pcs multi-size kit

🛡️Nylon shell for superior insulation

RM67

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Connect with confidence — power up your projects like a pro!

TRUSTED BY PROS - Top-rated with 4.7 stars from 5,000+ users and backed by 24/7 customer support for peace of mind.
COMPACT ORGANIZED - Transparent partitioned storage box keeps your connectors sorted and ready for any project on the go.
INDUSTRIAL GRADE SAFETY - Nylon shell with thick walls resists aging and ensures leak-proof, high-voltage insulation up to 600V.
SPRING LOADED STABILITY - Robust metal spring insert guarantees a rock-solid, vibration-proof electrical connection every time.
ALL IN ONE COLOR CODED KIT - 180 wire connectors in 5 vibrant colors for instant size ID and zero guesswork.

This 180-piece wire connector set features durable nylon insulation and strong metal springs to ensure safe, stable electrical connections up to 600 volts. Color-coded by size and neatly organized in a portable storage box, it’s designed for quick, reliable wiring in both professional and DIY settings.

Specifications

ASIN	B08DHZHQ4M
Best Sellers Rank	#1,835 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Industrial Electrical Connectors
Brand Name	Romeda
Color	Grey, Blue, Orange, Yellow, Red
Connector Gender	Male
Connector Type	Twist
Contact Material	Copper
Customer Reviews	4.7 4.7 out of 5 stars (5,070)
Gauge	1
Insulation Material Type	Nylon
Manufacturer	romeda
Material Type	Nylon, Plastic
Maximum Voltage	600 volts
Model	[Predicted] Rxxxxxx
Number of Items	180
Part Number	Rxxxxxx
Temperature Rating	221 degree fahrenheit
Terminal	Screw Terminal
UPC	727380254365
Unit Count	180 Count

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