RSNAV telephone support is open again, S5 reservation starts around the end of this May.

RSNAV phone support line is open again. Thank you for your patience.

RSNAV S5 Pro/Ultimate reservation will take a place around the end of this month. Please stay tuned for our YouTube demo of new S5 next coming weeks.

RSNAV S5 series (Left in the video below, the right one is the current S4)

New thin bezel versions of 12.3" lines(being designed) and 10.25"(planned) lines to come - second quarter of 2024.

- Brighter and better display
- New CPU supporting Android 13 (The spec performance is the same class as the current S4 lines, only a minor revision but critical for Android 13+ support)
- New DSP chip that has better EQ responses and stronger bass.
- Some hardware logic improvements based on user feedbacks in S4 series.
- More LTE frequency supports for US adapting the LTE frequency distribution policy changes.

Exact release date is not yet announced. S5 is much more like refinement of the current S4 line. There is no significant hardware spec upgrade(e.g. 5G data connection).

Shipping Delays

Our supply is running behind the demand now.

DO NOT PLACE AN ORDER IF YOU CAN'T WAIT. There are average of 100 orders ahead of you and the number is not decreasing.

There is no way for us to expedite an order for any reason. Everyone wants it fast and urgerntly.

We hope your generosity on this though times.

It is strongly suggested to contact us via e-mail( and if you feel your previous inquiry/request is neglected. We will give you an initial response within 48 hours.

'What is e-mail? Can I trust?' is a China stationed staff e-mail account and make sure this e-mail is not blocked or filtered in the spam. We are having issue with e-mail forwarding service on domain, thus using external e-mail service. We are sorry for the confusion and inconvenience

RSNAV S4 Ultimate Installation Guide by Daniel Polniak

Thank Daniel for his passion for the good of Audi owners.

Looking for screen protectors for your RSNAV S4?

For customers in the America, if you are looking for the best anti-glare, anti-smear screen protector for your RSNAV S4, please visit their RSNAV compatible products are laser cut to fit your RSNAV screen perfectly. S3 ones are also compatible with S4.

Updated instructions for RSNAV S4 Android headunits

For wiring diagrams and extra information for other car models, please visit

RSNAV S3, S4 Installation Walk-through Guides (Special thanks to our enthusiast Daniel Polniak.)

S4 Video Show cases and S3 legacy instructions

Some of following videos are time indexed so you can skip to the parts that you are interested in if you watch in YouTube site.

Looking for fast help from other RSNAV users, want to help others? Please join our user community! The link to the dedicated Facebook group is in the left menu. is operated by a very small team of dedicated staff. Despite our small team, we are in the process of growing our team to be able to help you quicker and more efficiently. Due to the popularity of our products we are experiencing a growth that is proving challenging to keep up with. Please be patient as we grow to better server you in the future.

We highly recommend joining the RSNAV group in Facebook, where Daniel monitors posts and questions on a frequent basis, even when outside of his office. Being a user community, there are also a growing number of RSNAV users that are very eager to help others.

Do not message Daniel or the RSNAV page using Facebook Messenger. It is NOT monitored and questions posted through messenger will not be read or answered. Please refer to the Contact Us page for the most appropriate email address to send your questions to.

Thank you, the RSNAV team. reserves the right to cancel a device registration if payment is cancelled or declined after shipping its products to a customer.

For example, if you file a chargeback, will cancel your device registration. This will result in the device functionality being suspended. Once the device has been suspended, Every 5 minutes, an 'inactivation warning' will appear on the screen on the affected RSNAV Android device. For Standalone devices, there will be a limited functionality until the required payment information has been provided to will not reinstate any device that has not been properly and fully paid for.

There is no way to retain a fully working RSNAV device without paying for it properly and in full. Any attempt to short pay, or steal the product from will be met with a quick response. We will pursue all attempts to defraud RSNAV.


last revised Nov, 6th, 2022