Now in development — Audi e-tron prototype

Your EV deserves a voice.

Real engine sounds, synced to your throttle, your speed, your car.

Join the waitlist Hear the engines
75ms
Throttle sync
44kHz
Audio quality
9
Engines
0wires
No cutting
The prototype: a grey Audi e-tron, side profile, parked under cherry blossoms 01 02 03 04
44.1kHz · 16-bit PCM · real-time OBD2 sync · real-time processing Resoniq · active sound system · patent pending
01

Sound core

Active engine system

02

Exhaust layer

External acoustic stage

03

Vehicle sync

Real-time data link

04

Presence channel

Forward sound stage

01Hear the engines

Resoniq Engine Synth

Every engine here is generated live from its real firing order, exhaust layout and induction, using the same code that runs on the box. Each clip is one drive through every mode: idle, blips, the rev limiter, a lift, a pull through the gears, overrun, cruise, a hard stop with rev-matched downshifts, and shut-off. Pops and bangs start off; flip the switch to hear them.

Development sounds. More engines are coming soon.

These are synthesized models of each engine, still being tuned, not recordings. Car names describe the engine each sound is modeled on; Resoniq isn't affiliated with these manufacturers.

Pick an engine below Nothing playing
0.0 s

Off: just the engine. Tap a mode to jump to it.

Engine orders: the even firing pulsesHalf orders: uneven pulses (burble, warble, rumble)

New engines are coming soon

Tell us what you want to hear next. Every suggestion gets read, and the most-requested engines get built first.

Got it. The most-asked-for engines get built first.
02How it works

OBD2 in.
Engine sound out.

Resoniq reads your throttle position and speed in real time through your car's OBD2 port, then generates the engine sound to match, live.

Step 1
Your EV
OBD2 port
Step 2
BLE Dongle
plug-in, wireless
Step 3
Resoniq Unit
sound processor
Step 4
Engine Synth
built in
Step 5
Audio Engine
generated live
Step 6
Your Speakers
cabin + exterior

Control it from your phone: open the Resoniq app and connect to your unit.

Plug in. Done.

The OBD2 Bluetooth dongle takes 10 seconds to install. No wiring, no cutting, no coding. The Resoniq unit mounts in your trunk.

Throttle-accurate

Throttle position updates every 75ms. The virtual RPM engine blends pedal pressure and vehicle speed to create a natural, responsive rev feel.

Full app control

The Resoniq iPhone app. Switch engines, adjust volumes and EQ, and turn pops & bangs on or off, all from your phone.

03Speaker system

Layered audio.
Real presence.

Phase 3 expands from a single interior speaker to a full directional sound stage, inside and out.

SPK 1 · Interior trunk · live EXT 2 · Under rear bumper Phase 3 · external exhaust sim AVAS 3 · ADAS / AVAS tap SPK 4 · Door panels Phase 4 · stereo SPK 4 · Door panels Resoniq unit Live now Phase 3 Phase 3/4 Phase 4
Live now Phase 3 Phase 3/4 Phase 4 Resoniq unit
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1 · Live now

Interior Trunk Speaker

Single coaxial in the trunk, diffused through the rear shelf. Fills the cabin with engine character you feel in the seat. This is the core of the Resoniq experience.

2 · Phase 3

Under Rear Bumper

A weather-sealed external speaker mounted under the rear bumper simulates an exhaust note, audible outside the car and through open windows. Crackle sounds project outward for full effect.

3 · Phase 3 / 4

AVAS System Tap

The Audi e-tron ships with an AVAS (Acoustic Vehicle Alerting System) speaker in the front for pedestrian warning. Resoniq can tap this channel to add front-end presence to the soundstage, with no new holes drilled.

AVAS tap note: The e-tron's AVAS speaker is EU-mandated and active below ~20 km/h. Resoniq would take over above that speed, blending seamlessly from the pedestrian alert tone into the full engine profile. Zero new drilling, just a clean signal splice behind the front bumper liner.

04Current prototype

What's working today

Running on a real Audi e-tron, driven daily. Every feature below is live and tested on the road.

OBD2 Throttle + Speed Sync75ms cycle
Virtual Gearboxspeed-based RPM, real shifts
Rev Hang on Lift-Off0.40s natural decay
Startup Soundplays on ignition
iPhone AppBluetooth control
Engine Switchinglive, no reboot
EQ (Bass + Treble)±6 dB per band
Resoniq Engine Synth9 engines, in testing
Fuse Tap (Permanent Power)ACC fuse, installing soon
Exterior / Rear SpeakerPhase 3 hardware
App Store ReleaseTestFlight first
LiveComing soonLater
Resoniq
Resoniq
GEAR
3
3,840
VRPM
THR
74%
THROTTLE74.0
SPEED62 mph
STATUS OBD linked · Unit linked BMW M3 (E92)Engine Synth — Active
05Build log · updated Oct 2026

From breadboard to custom hardware

Resoniq started as a hand-wired prototype in one car. This year it became a custom board designed for small-batch production. Here's how that's going.

Board v1 · in bring-up

The first custom board is built and running firmware on the bench. We're working through bring-up now, the normal process of proving out every part of a brand-new board before revising it.

Once v1 is fully proven, the fixes roll into a second revision, a small validation batch, and then the first production run.

11 wkprototype to first custom board
v1board in bring-up
4speaker channels designed in
Dailyroad-tested on the e-tron

Timeline

Oct 2026

Bring-up on the first custom board. Firmware runs on it, and we're finishing the audio path before the next revision.

Sep 2026

First board assembled and running on the bench. New firmware with separate bench and in-car modes.

Aug 2026

The first custom boards arrived from the fab.

Jul 2026

Finished the hardware design for a four-speaker system and laid out the board.

Jul 2026

Decided to move from hand-wiring to a custom board, so every unit is built the same way.

Before that

The original prototype, daily-driven in the Audi e-tron, synced to throttle and speed.

Next up

  1. Finish bring-up on board v1.
  2. Bring the exterior speaker channel online.
  3. Roll the fixes into a second board revision.
  4. Build a small validation batch.
  5. First install of the custom board in the car.
  6. First production run.

Watch it come together

Build clips, sound tests and the occasional failure go up on TikTok and Instagram first.

@resoniq.ev on TikTok @resoniq.ev on Instagram

Loading the latest clips from TikTok…

@resoniq.ev

The TikTok feed didn't load here

Usually that's a content blocker or private browsing. The clips are all on TikTok, one tap away.

Watch on TikTok
06Compatibility

Works with your EV

Every modern EV has an OBD2 port. Resoniq plugs in and reads throttle and speed in real time. Here's what's running and what's rolling out next.

Live now
DE
Audi e-tron
Gen 1 & 2 · All variants
Daily driven & tested
In testing
US
Tesla Model 3
RWD · Long Range · Perf
US
Tesla Model Y
All variants
DE
Porsche Taycan
Taycan · 4S · Turbo
Coming up
DE
BMW i4 / iX
eDrive35 · eDrive40 · M50
KR
Hyundai Ioniq 5
Standard · Long Range · N
KR
Kia EV6
RWD · AWD · GT
US
Rivian R1T / R1S
Adventure · Performance
On deck
US
Ford Mustang Mach-E
Select · Premium · GT
DE
Volkswagen ID.4
Pro · Pro S · GTX
US
Chevy Blazer EV
LT · RS · SS
US
Lucid Air
Pure · Touring · Grand Touring
SE
Polestar 2
Single · Dual Motor
Any EV with an OBD2 port can run Resoniq. The list above reflects vehicles that have been hands-on tested or are actively being validated. Tell us what you drive.
07Roadmap

From prototype to product

Four phases from a working daily-driver prototype to a commercial kit any EV owner can buy.

01
Phase 1 · Complete

Working Prototype

Core system built and installed in a real Audi e-tron. Throttle-synced audio, phone control, switchable sound profiles.

Custom sound hardware BLE OBD2 link Virtual RPM engine Phone app control Rev hang + crackle 75ms throttle sync EQ + volume controls
02
Phase 2 · In progress (weeks)

Polish + Engine Synth

Clean up the physical install, tune the first Engine Synth engines in the car, and wire permanent fuse-tap power.

ACC fuse tap powerBetter speaker (5.25")Engine Synth tuningMore enginesElectronics inside enclosureCable management
03
Phase 3 · Hardware v2 (2–4 months)

Multi-Speaker + CAN Bus

Rear bumper external speaker, AVAS system tap, direct CAN bus for paddle detection and sub-5ms data, and a custom PCB replacing the breadboard stack.

Under-bumper speakerAVAS channel tapCAN bus integrationPaddle shift detectionTorque + battery readout Custom board v1 · in bring-up Native iOS (TestFlight)
04
Phase 4 · Commercial kit (6–12 months)

Resoniq for Everyone

A boxed product any EV owner installs in an afternoon. Custom enclosure, pre-wired harness, App Store app with in-app sound pack purchases.

Custom molded enclosurePre-wired harnessUniversal OBD2App Store (iOS + Android)In-app pack storeOTA firmware updatesMulti-car supportInstaller partners
08Pricing

One kit. The full experience.

Planned retail pricing for Phase 4. Join the waitlist now and get 10% off your kit at launch, no code needed.

Resoniq Kit
Waitlist · 10% off
$399 / kit
Join the waitlist for 10% off at launch · Full experience, nothing left out
  • Resoniq hardware unit + firmware
  • OBD2 BLE dongle
  • Interior + rear bumper speakers
  • 2-channel stereo amplifier
  • Custom speaker enclosure + mounts
  • 12V fuse tap wiring harness
  • Built-in engines included
  • Native iOS + Android app
  • OTA firmware updates
  • Real-time control from your phone
Sound Pass
$5.99 / month
Unlimited extra engine packs. Cancel anytime.
  • Every extra pack, unlimited
  • New packs on drop day
  • Early beta profiles
  • OTA delivery to your unit
  • Cancel any time
09Help & FAQ

Common questions

Everything you need to know before joining the waitlist.

Still have a question?

Ask it here and we'll answer it. Build updates, sound previews and behind-the-scenes stuff go up on social first.

Got it. If you left an email, you'll hear back.
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What vehicles does Resoniq work with?
Any electric vehicle with an OBD2 port, which covers virtually every EV made after 2008. Resoniq uses the standard OBD2 throttle and speed readings and learns each car's pedal range and acceleration on its own, so it's designed to work without any per-car setup. The prototype is daily-driven and tested on an Audi e-tron; more cars will be tested before launch.
Will this void my car's warranty?
It's designed not to. Resoniq connects to your OBD2 port in read-only mode: it only reads throttle and speed data, the same way a scan tool or diagnostic app does, and never changes any settings. Nothing in your car's software or hardware is modified, and it unplugs in seconds.
How does the startup sound work?
When you switch on your car, Resoniq detects it and starts your selected engine on its own, settling straight into idle. There's no button to press.
How loud does it get? Can I control the volume?
Completely adjustable from the app. The speaker lives in the trunk and fills the cabin through the rear shelf. Most people run it between 40–70%, present enough to feel but not overwhelming. You can also tweak bass and treble independently, and mute it in one tap if you want silence.
What engine sounds are available right now?
Nine engines from the Resoniq Engine Synth: BMW M3 (E92), M5 (E60) and M4 (G82), Audi RS3, Porsche 911 GT3 (992), Alfa Romeo Giulia Quadrifoglio, Chevrolet Corvette Z06 (C6), Dodge Challenger Hellcat and Toyota Supra (MK4). Each is generated live from the engine's firing order and exhaust, so it follows your revs exactly. They're development sounds still being tuned, and more are coming soon. You can also suggest an engine, and the most-requested ones get built first.
How do I install the hardware?
Under 10 minutes, no tools required. Plug the Bluetooth OBD2 dongle into your OBD2 port (under the steering column), mount the Resoniq unit in your trunk, then open the Resoniq app and connect to your unit. That's it. The production kit will include a fuse-tap cable for clean, permanent power, so there are no loose cables.
When can I actually buy one?
We're in active prototype phase, and the system runs on a real Audi e-tron every day. Production kits are targeted for Phase 4 of the roadmap, the commercial kit. Join the waitlist to get 10% off your kit at launch and first access when units are ready.
10 · Early access

Be first in line

Resoniq is in active development. Join the waitlist to get 10% off your kit at launch, hear new engines early, and follow the build.

No spam. Just build updates and your early-access invite when it's ready.
You're on the list. We'll email you when your invite is ready.