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

⚡Spring metal for secure connection

🧰180 pcs all-in-one kit

🛡️Nylon shell for max insulation

RM67

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Description

⚡ Connect with Confidence — Power Up Your Projects Like a Pro!

SECURE SPRING LOADED GRIP - Metal spring insert guarantees stable, slip-free connections under any condition.
COMPACT ORGANIZED STORAGE - Transparent partitioned case keeps connectors sorted and ready for instant use on-site or at home.
COMPLETE PRO GRADE ASSORTMENT - 180 color-coded wire connectors for every project—never run out or guess the size again.
UNMATCHED SAFETY DURABILITY - Thick nylon insulation resists aging and leakage, ensuring long-term electrical safety.
HIGH VOLTAGE HEAT RESISTANCE - Rated for up to 600V and 221°F, built to handle demanding electrical environments with confidence.

This 180-piece wire connector kit features durable nylon insulation and a strong metal spring insert for secure, reliable electrical connections. Color-coded by size and stored in a compact transparent case, these connectors support up to 600 volts and 221°F, making them ideal for professional and DIY electrical wiring projects. Trusted by thousands for safety, convenience, and value.

Specifications

ASIN	B08DHZHQ4M
Best Sellers Rank	#1,900 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 (5,068)
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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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

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RM67

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

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TrustScore 4.5 | 7,300+ reviews

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