Car Audio Amplifiers & Fitting Kits

Why Choose Our Amplifiers & Fitting Kits

At InCarTec, we know a great car stereo isn’t complete without a solid, reliable amplifier. That’s why ourcomprehensive catalogue of tried and true products covers everything from 4-channel amps for everyday speaker upgrades to powerful mono or 5-channel models capable of driving subwoofers and high-performance speaker setups.

We only stock car amplifiers that deliver consistent performance across different vehicles and speaker loads, so you get clean power delivery and stable output whether you’re wiring in a modern hatchback or a classic saloon.

Our full kits, combining amplifier, wiring harnesses, fitting accessories and documentation, make installation straightforward and reduce time spent on each job. That means less time wiring and more time delivering great sound.

With broad vehicle compatibility, complete wiring guides, and reliable supply for both trade professionals and DIY enthusiasts , we make sure you’re covered, regardless of the complexity or scale of the job.

Who Are Our Kits Suitable For?

Our extensive range means we've got something for everyone, but some of the most common users of our products and why we're their go-to choice:

Professional installers & workshops - Our quick-fit amplifier kits have broad vehicle compatibility and are backed by our expert technical support, making them ideal for professionals carrying out multiple installs per week.
Weekend DIYers and automotive hobbyists - We provide clear wiring harness guides, vehicle-specific compatibility info, and all-in-one kits to make DIY installs not just manageable but satisfying and fun.
Drivers upgrading older cars or daily commuters - Our easy-to-fit amps and kits enhance sound quality without disrupting a vehicle’s original aesthetic or wiring layout.

What Sets Our Amps & Kits Apart

Feature

Benefit

Wide vehicle compatibility

Our kits work across many makes and models, from older vehicles to modern builds.

If in doubt, you can use our industry leading compatibility checker to be sure you're buying the right products.

Plug-and-play wiring kits & harnesses

Minimises wiring complexity, making them great for fast installs or DIYers.

Professional-grade reliability & stable power delivery

Essential for high-fidelity speakers/subwoofers and long-term durability.

Comprehensive documentation & support

Wiring diagrams, pinouts and installation instructions are all included and support is always available if needed.

Consistent stock and trade-friendly supply

Our UK stock is ready to order and available for fast dispatch, so workshops and repeat customers are never left waiting.

FAQs

How do I choose the right amplifier for my speakers or subwoofers?

Match the amplifier’s continuous (RMS) power to, or slightly above, the combined RMS rating of your speakers or subwoofer. For standard speaker upgrades, a 4-channel amp delivering around 40–60 W RMS per channel is usually ideal. For subwoofer builds or full-system upgrades, a mono or 5-channel amp providing 200 W RMS or more offers better headroom, cleaner bass and longevity. Also check speaker impedance (ohms) compatibility.

Will these amps fit older cars or different vehicle makes easily?

Yes. We stock amps and full-fit kits with harnesses and adapters designed to suit a wide variety of vehicles, from modern models to older classics. Our vehicle-specific wiring kits simplify installation and ensure safe, clean wiring.

Do you supply the wiring kits, fuses, and all installation accessories in the same order?

Absolutely. You can order full amplifier kits that include the amp, power and ground wiring, fuse holder, installation harnesses or adapters, speaker wiring and sometimes steering-wheel-control interfaces (if required). This ensures you have everything needed in one go.

What kind of support do I get if something goes wrong during an install?

Every amplifier and fitting kit we supply comes with full technical documentation including wiring diagrams, pin-out charts, installation notes, plus support from our team if you run into issues. Trade customers are especially welcome to contact us for help with complex or unusual installs.

Are these amplifiers compatible with aftermarket head-units, smartphone audio and streaming setups?

Yes. Our amps work downstream of any head unit, whether it’s a modern aftermarket stereo, a smartphone-integrated unit or a factory head unit. They deliver clean, stable power regardless of source, ensuring the best audio performance while letting your head unit handle connectivity (Bluetooth, CarPlay/Android Auto, streaming, etc.).