Twelve Volt Technologies

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

This is what happens when the enclosure is made for the car, not just jammed in. Carpeted fiberglass tucked into the pas...
09/19/2026

This is what happens when the enclosure is made for the car, not just jammed in. Carpeted fiberglass tucked into the passenger corner of a 2015 IS350 trunk. It drops in clean, the sub fires into the cabin, and you barely lose any cargo space. Fit is what separates a good install from a sloppy one. What's the most space you've given up for bass?

We ran the wiring for the backup camera in this Silverado and tied it into the new head unit. Drop it in Reverse and the...
09/16/2026

We ran the wiring for the backup camera in this Silverado and tied it into the new head unit. Drop it in Reverse and the camera feed comes up right on the screen, no separate monitor, no guessing. It's making the tech disappear into the factory setup. Ever installed a backup cam in your truck?
We'll put an estimate together, just text us.

This 2003 4Runner was in need of some modern upgrades, but not every project calls for a giant touchscreen! This simple ...
09/14/2026

This 2003 4Runner was in need of some modern upgrades, but not every project calls for a giant touchscreen! This simple Kenwood upgrade added much-needed Bluetooth connectivity to the truck while keeping costs down and complexity low! ✨

Getting the old speakers out isn't even half the job. Once you get the doors apart, you still have to run the new wiring...
09/12/2026

Getting the old speakers out isn't even half the job. Once you get the doors apart, you still have to run the new wiring harnesses, mount the crossover network, and tidy up and secure everything inside the door cavity. Upgrading speakers is always more than just tossing them in. It's the detail work, careful disassembly, component mounting, and reassembly that takes the real time. 🛠️

Fitting modern screens into older dashboards is always a project. The new touchscreen radio and climate panel look clean...
09/09/2026

Fitting modern screens into older dashboards is always a project. The new touchscreen radio and climate panel look clean, even on a 2003 Avalanche. It's about making the tech disappear into the existing structure. What other older vehicles need a modern refresh?

2020 Porsche 911. We modified the original factory head unit to enable direct Android Auto integration. Getting modern v...
09/07/2026

2020 Porsche 911. We modified the original factory head unit to enable direct Android Auto integration. Getting modern vehicles to have the features you want doesn't have to be impossible if you know the right people. ⚙️ Reach out for an estimate today!

Always love dropping a modern screen into an '04. This Android unit sits where the factory radio was, climate controls s...
09/05/2026

Always love dropping a modern screen into an '04. This Android unit sits where the factory radio was, climate controls staying right below where they belong. It's keeping the original character while updating what's behind the dash. What's the oldest car you'd bring up to date?

A Dual ARB compressor plus a 12-gang panel. That's 12 dedicated circuits, all routed cleanly by the firewall. Keeping th...
09/02/2026

A Dual ARB compressor plus a 12-gang panel. That's 12 dedicated circuits, all routed cleanly by the firewall. Keeping the power organized around the Odyssey battery is the tricky part. What's the most complex electrical job you've seen recently?

Headunit integration is never just a swap. Here we pulled the original PCM unit to expose the underlying wiring harness,...
08/31/2026

Headunit integration is never just a swap. Here we pulled the original PCM unit to expose the underlying wiring harness, then we built the integration harnesses for the new Alpine touchscreen. It's the prep work and the architecture that always tells the story. What's the trickiest unit you've ever integrated?

2013 Tacoma. Factory tailgate opened up and power lock in.The lock motor hides in plain sight. Factory look, modern func...
08/29/2026

2013 Tacoma. Factory tailgate opened up and power lock in.
The lock motor hides in plain sight. Factory look, modern function.
We put estimates together; just text us. Ever wished your truck tailgate could lock automatically?

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

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