2026 Model 3 RWD Standard audio hardware differences vs Premium and upgrade possibilities

I have the M3 standard RWD since 2 days ago and yes, the sound is not great. Other than that the car is really good. I have no idea about upgrading the sound system, but will be following this thread

I just got a 2024 M3P.. the sound system is AMAZING in my opinion. Best stock system I've ever had. Will add a sub down the line. But it's pretty impressive as is. So I'm not sure if the Performance comes with a better system than standard

I haven’t compared the two systems and I do not know if they’ve made changes from the 2025 model. If not, this might be helpful. I have a 2025 M3 RWD with the 9-speaker system. I wasn’t happy with the low end and ended up installing a powered Bass Tube in the sub trunk. I would think anything less than the 9 speaker system (and even the 9 speaker system) may end up being a source of dissatisfaction for you too. In retrospect, I would opt for the AWD M3 which has upgraded sound. That said, you can go with the RWD (either model) and put in a sub. I am happy with the system now that I have the sub in. It’s not earthshaking bass by any stretch, but much fuller. Disclaimer: I’ve seen others post that they were very happy with the 9 speaker system. Maybe somehow my car has/had a signal processing issue that suppressed bass. I’ve always had the bass all the way up and even then, almost nothing. I find the imaging and sound quality very good…just no bass in stock form.

Did you install the bass tube yourself? Was thinking about doing the same

I am in the U.S., and have a ‘25 M3 RWD (now called the premium). It does not include the subwoofers the M3P or the AWD does. It also has 9 speakers vs 7 for the standard or 15 for the others. I have looked at speaker upgrades as well as a subwoofer install. It’s an investment of over $1,000 without a subwoofer. [Light Harmonic](https://www.lightharmonic.com/product-page/tesla-model-3-highland-rwd-9-speakers-system-upgrade)

So I initially had a sub and amp installed in the car by a shop but we couldn’t get the vehicle to stop bricking itself. Had capacitors and resistors and all that stuff, still no luck. We ended up removing all the equipment, but still had the wiring in place left under the rear seat. That made it easy for me to put the bass tube in the backseat and hook everything up to test if it would work. It did. I then took it back to the shop to have them run everything cleanly.

Alpine has a system with subwoofer for $3,500

Thanks for the info. Might end up going with a bass tube also, just hope there’s a shop near me that’ll be able to install it properly

You bet! This is what I went with. https://www.crutchfield.com/p_204BTA1010/Bazooka-BTA10100.html Recommended from another Reddit user who was super helpful to me.

Yes, it’s an upgraded system from the base mod, that’s best system you can get in a M3 same one is in the AWD and it already has a dedicated sub and amp.

I think there are now three audio systems in the model 3 where as before there were only two. I think the barebones car with the cloth seats and all that has a further paired down system with just 7 speakers. The premium RWD (previously just RWD) has the same 9 speaker setup from the AWD and P just minus the woofer and dedicated amp. In the past it was the top tier system in the P and AWD and then just a lower level system in the standard range rwd. My guess is the newest system is the worst which is in the new budget rwd model.

Yeah.. I was pleasantly surprised.. I was on the fence about getting a newer base or used Performance. I'm confident I made the right choice

I have been driving my new 2026 Model 3 RWD Standard for a week. It is an amazing budget EV except the audio system is really underperforming. I test drove a RWD premium previously and I can recall the sound system was much better than my 2026 RWD. BTW, I was a bit worry about the downgraded suspension and no acoustic glass on 2026 M3 RWD but in reality the drive is not rough/bumpy and cabin is very quiet. I also need advice on sound system upgrade. TIA!

I would imagine the speaker's harness is different. In order to get all speakers working/ build out as the premiums, there are basically two paths, with the third option not being feasible. The simplest is to add an amp and sub to the rear, and power the sub and shelf speakers from that. They made a harness for previous years that "unlocked" the front tweeters. The best setup would be to run a dsp and amp for all speaker channels to the rear, then rewire the whole sound system. There was a harness that made this fairly simple, but I know if they make it for the latest versions of the car. The third option, and most unlikely option, would be to put in the premium harness, premium amp, and subs. Then get someone to change your Tesla config to premium audio.

Just in case for all AWD/P owners: before shelling out for a new sub, try adjusting the bass in the equalizer. There's a hidden setting you can reach as shown here: [https://www.reddit.com/r/teslamotors/comments/rnrtv7/audio\_easter\_egg\_with\_subwoofer\_and\_bass\_at\_max/](https://www.reddit.com/r/teslamotors/comments/rnrtv7/audio_easter_egg_with_subwoofer_and_bass_at_max/)

I don't even think the AWD sound system of this generation is a true upgrade from the Premium RWD. The infinite baffle setup sucks. Imo I would do what you did. Premium RWD with my own sub is the move for this generation if you care about good audio.

How did you guys try to wire it? Im running my 500W JL audio setup with no capacitors/resistors. just an LCI2i tapped into cig outlet for turn on and front door woofers for signal. I'm getting power from the penthouse under the rear passenger seat. Given the bazooka has a 100W amp i doubt the initial power draw is the issue? Hell I didn't even have issues running a 1200w amp. It would brick the car randomly, but then worked after a reset. I ended up removing it either way but it seemed to mostly work.

In the prior gen(2020-2023) models years roughly speaking the dual motor and RWD systems were not that different. They used the same speakers, with the same amp but the RWD lacked the tweeters, subwoofer/sub amp and the rear surround speakers. The tuning and even DSP was pretty similar. Before people come at me I have measured both systems. The New gen is similar between the Premium RWD and dual motor models. But, I suspect that tesla used a different AMP and internal DSP tuning for the standard model. I personally haven't opened up a standard RWD so maybe the speakers themself are cheaper than the RWD premium and dual motor models. You can upgrade the system. At the minimum you will want a subwoofer with its own amp. If you want the speakers to sound better you'll need to bypass the system with your own DSP/AMP setup. Its been done before and is decently well documented online. If you're handy and knowledgable you can do it yourself, or have someone do it. Speaker count alone doesn't really make for better audio. As long as you have capable door woofers, midrange, tweeter, center channel(not even a requirment) and some rear fill speakers you can have a top tier system.

I have a 2026 M3 standard RWD too and am fine with it since I’ve EQd the sound to a v shape i.e lowered mid frequencies.

>This is very helpful, thank you! >So for the 2026 Standard it’s likely not just missing speakers but also a different amp/DSP configuration. Sounds like adding a sub with its own amp is the most realistic first step without rebuilding the whole system.

>That’s interesting. It sounds like the older generations were much closer between trims. I suspect Tesla may have reduced hardware on the new budget RWD...

>That’s interesting! Would you mind sharing your exact EQ settings? >A photo of the EQ screen would be great if possible :)

The bazooka actually wasn’t the issue. Initially I had a kenwood 12 inch sub hooked up to an amp with power from the penthouse plus the capacitor and resistor, etc. Installer hooked it up just like he had successfully done for other earlier year M3’s, but still the bricking issue. I have a feeling there’s something different about highland model cars or maybe it’s the difference between the 12V and 16v battery. I’ve scoured the interwebs for info and from what I’ve read it seems like folks with 12V cars had less problems getting power from the penthouse whereas those with 16v cars are having more success connecting directly to the 16V battery. Not saying it’s not possible either way, but that’s my read on the situation. I was particularly interested in the sub and amp install video from Breakers Stereo and Performance out of CA. Looks to be a 24 M3P. This is a 16v battery, but not sure if installation would be similar on a RWD car. Hopefully I attach this link correctly. https://m.youtube.com/watch?v=K_kq59TIGDk

Continued thought…. So this is what made me scrap the whole idea (for now) and instead I decided to run the bass tube in the sub trunk with power coming directly from the cigarette lighter. I’m sure there’s a limit to how much power you can draw from the cigarette lighter with any other modifications (150w?). I decided to play it safe.

Here’s my preference. I also prefer the balance/fader centered to the rear. Just note that we all have different tastes, listen to different genres and hear differently so tweak it until it sounds right to you. I do suggest lowering a frequency instead of raising it to reduce distortion. https://preview.redd.it/fc0dmqujz1mg1.jpeg?width=5712&format=pjpg&auto=webp&s=f5341b4cc1f64971756a4b6055214e1932c34286

>Thanks a lot for sharing this! I really appreciate it. I’ll give it a try and tweak it slightly to match my music taste. Great tip about lowering frequencies instead of boosting them.

I have the full Alpine 9 speaker + 10in subwoofer with the amplifier/dsp powering everything and about 40sq ft of resonix sound deadener in my 2023 M3 RWD and it is 👌. Don't know if I'd pay 3500 for it. Was able to get the whole kit new in box on marketplace for $1600. Love the stealth and fully usable trunk space with the hidden subwoofer.

I wonder if it would work in a ‘25 Highland

Everything in terms of parts is the same the only thing which would potentially be different is the wiring harness. I don't think they have a harness or even bundle yet on sale for the non premium models looking at their website for any year at the moment. I know previously they had issues with certain year models not working with the harnesses so the had to redevelop the harnesses as tesla may have made changes to the wiring so potentially you could have 2 model 3s of the same year with different harnesses needed. I think they have a vin decoder now which may tell you which harness you need. Tesla offers their wiring diagrams on their website so you could potentially even make your own harness (deff not easy). You're just pulling signal for each speaker. Each speaker has 2 wires + and -. You're bringing that signal from the MCU under the passenger dash to the amp/dsp in the trunk and then bringing it back to the speaker wires at the MCU.

Following this for tips.  I have a 2026 Premium RWD and I borderline hate the audio. Sucks being punished with this audio system for simply not wanting or needing AWD. Would’ve gladly paid for the upgraded audio if I could.  It’s not terrible but it’s not as good as it should be for the price of that car.

I see. That is really interesting. Wonder what could have been causing the issue. I also have a 16v in my 2023 m3, had no problems. How is the bass tube on a small amount of power?

Was planning on getting the RWD 2026 premium, is it really that bad?? I'm in California and don't need AWD either. I'm trying to pick between this and the Model Y RWD Premium. I think that has the same sound system, too. Outside of that, how has the car felt driving it around? I'm taking a test drive soon on both.

It's pretty bad. The lack of subwoofers is painfully apparent. Again, not horrid but it's a $40K car and not even the base model. I use AirPods for a lot of listening, which are great, but it makes it all the more obvious how hollow the audio is in the car when I drive. The only reason Tesla does it is to force more AWD uptake. I actually prefer the RWD not needing AWD. Hard to explain but the AWD felt overbuilt and it burns through the battery. Model Y all premium gets your the upgraded audio so literally just decided to screw the Model 3 Premium RWD for some reason.

Oh yeah, just checked the design page, man, that really sucks. I would have preferred the Model 3 personally over the Y, but for a similar enough range, a better screen and sound system, and of course the space for 2,5000 more, it might just be worth it. Will come down to test drive, tho im leaning toward Model Y now

Can’t blame you. That’s pretty much the play based on numbers. I prefer the Highland and was able to get Ultra Red for free from inventory so I did it but I’ll always wonder