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Monday 10am - 7pm Tuesday 10am - 7pm Wednesday 10am - 7pm Thursday 10am - 7pm Friday 10am - 7pm Saturday 10am - 7pm Sunday 10am - 7pm

Twelve Volt Technologies

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United States
San Diego, CA
Twelve Volt Technologies

We specialize in the automotive electrical environment and are a fully mobile service offered in the

08/16/2026

Adding a dedicated auxiliary battery system requires careful component management. Dual NorthStar AGM batteries installed, mounted with the Off-Grid Engineering kit. Fuses (and covers) complete the setup, ensuring protection against shorts. This isn't just a battery swap; it's adding a separate power zone. What's the most complex electrical job you've ever tackled?

04/10/2026

🔊 Full audio upgrade completed on-site in Rolando

This 2003 Toyota Tundra received a major sound system upgrade with a Sony XAV-9500ES head unit, Alpine S2 speakers in the front and rear doors, and sound-deadening materials to improve overall audio performance.

Adding sound treatment around the speakers helps reduce vibration and road noise, allowing the system to produce cleaner, more accurate sound.

Best of all, this entire installation was completed at the client’s home — no need to visit a shop or leave the vehicle behind.

🚐 We bring the parts, tools, and expertise directly to you

📲 Contact us today to upgrade your system

04/04/2026

🔊 Classic car, modern audio — done right at your home

We recently upgraded this 1966 Chevy Nova with a full Alpine audio system, including a UTE-73BT head unit, KTA-30FW amplifier, and new Alpine speakers for improved clarity and performance.

Our goal was to enhance the sound system while maintaining the classic feel of the vehicle — all with a clean, professional installation.

This project was completed on-site in National City, allowing the client to avoid the hassle of transporting their classic car to a shop, or Stressing about what happens behind closed doors

🚐 We bring the parts, tools, and expertise directly to you

📲 Contact us today to upgrade your ride

04/02/2026

🚐 Dash cam installation completed in Carmel Valley

We recently installed a 𝗰𝗹𝗶𝗲𝗻𝘁-𝗽𝗿𝗼𝘃𝗶𝗱𝗲𝗱 𝟮-𝗰𝗵𝗮𝗻𝗻𝗲𝗹 𝗥𝗼𝘃𝗲 𝗱𝗮𝘀𝗵 𝗰𝗮𝗺𝗲𝗿𝗮 𝘀𝘆𝘀𝘁𝗲𝗺 in this 2025 Ford Bronco Sport — all done on-site at the client’s home.
Whether you purchase your equipment from us or already have your own, we provide clean, professional installations with hidden wiring and proper camera placement for reliable performance.

No shop visits. No guesswork. Just a seamless mobile installation experience.

📲 Looking for dash cam installation in Carmel Valley or San Diego County? Contact us today to get started.

03/29/2026

🚐 Professional installation — brought directly to you

We recently upgraded this 2007 Mercedes-Benz CLK550 with a client-supplied JVC KW-Z900W tablet-style radio, all completed on-site at the client’s location.

Whether you purchase equipment through us or already have your own, we provide clean, professional installations with factory-style integration and fully hidden wiring.

No shop visits. No guesswork. Just a seamless experience from start to finish.

📲 Contact us today to schedule your mobile installation

03/26/2026

Factory look, factory function — done right at your home 🔧

This 2017 Dodge Journey came to us without a backup camera and left with a fully integrated factory Mopar camera displayed on the original 8.4” screen.

The best part? This installation was completed 𝗼𝗻-𝘀𝗶𝘁𝗲 𝗮𝘁 𝘁𝗵𝗲 𝗰𝗹𝗶𝗲𝗻𝘁’𝘀 𝗵𝗼𝗺𝗲 𝗶𝗻 𝗢𝗰𝗲𝗮𝗻𝘀𝗶𝗱𝗲, so they didn’t have to visit a shop or deal with any downtime.

We specialize in OEM-style upgrades that look and function exactly like factory — with the added convenience of mobile installation throughout Oceanside and San Diego County.

📲 Looking for backup camera installation in Oceanside? Request a custom estimate today.

03/25/2026

Simple upgrade. Big difference. ✔
This 1999 4Runner went from a factory radio to a clean Kenwood Bluetooth setup — and it completely changes the driving experience.
📸 Swipe through:
Before → dash apart → after
Not every install needs to be high-end to be worth it. Sometimes you just need modern features in a classic ride.
DM us to upgrade yours.

03/23/2026

🚐 Professional installation brought directly to your driveway
This 2018 Ford Raptor is now equipped with a Blackvue Elite10 2-channel dash cam system — and the client didn’t have to go anywhere or handle a thing.
We supplied the equipment, completed the installation on-site, and delivered a clean, factory-style result with fully hidden wiring and proper placement throughout.
No waiting rooms. No drop-offs. No guesswork.
Just a seamless, professional experience from start to finish.
📲 Request your custom estimate today

03/18/2026

Big bass upgrade completed on this 2015 Chevrolet Silverado 🔊🔥

Dual AudioControl SPC-10S4 subwoofers loaded into a 10" under-seat enclosure, getting ready to slide into place. This setup keeps the factory look while adding serious low-end impact.

A custom subwoofer volume k**b being added to the dash, giving the driver quick control over bass levels for any song or driving situation.

The AudioControl LC-1.800 mono amplifier was mounted cleanly under the passenger seat for a stealthy, space-saving installation.

This system was designed to deliver tight, powerful bass without sacrificing interior space or everyday usability.

Thinking about upgrading your truck’s sound system? Let’s build something that hits just right.

03/17/2026

Another clean full audio build wrapped up on this 2020 Toyota 4Runner 🔊🔥

Photo 1: A look at all the equipment before installation — Audiofrog GS25’s, GS62’s, GB60’s, and a GB10D2 subwoofer powered by two EA-MT4 amplifiers and an EA-MT1, all tuned with a MiniDSP CDSP-8x12 for precise acoustic calibration.

Photo 2:Getting ready to install a set of Audiofrog GS25 midrange drivers in the dash — proper speaker placement and preparation is key to achieving a wide, natural soundstage.

Photo 3: The Audiofrog GB60 midbass installed in the front door. Solid mounting and acoustic treatment help deliver tight, accurate midbass performance that you can feel as well as hear.

This system was designed for clarity, output, and tonal accuracy — transforming the driving experience into a true listening environment

Thinking about upgrading your factory system? Let’s build something amazing.

Address

San Diego, CA

Opening Hours

Monday	10am - 7pm
Tuesday	10am - 7pm
Wednesday	10am - 7pm
Thursday	10am - 7pm
Friday	10am - 7pm
Saturday	10am - 7pm
Sunday	10am - 7pm

Telephone

+16195668087

Website

http://www.12volt.tech/, https://links.12volt.tech/Request-Facebook-Quote

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