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Hansshow Audio Upgrade? (SR+)

bo3bdar

Member
Feb 21, 2021
144
184
Silicon Valley
I read through the entire 75 page thread last week, taking like 4 hours. My takeaway from all that is that Hannshow is mostly winging it, and not doing real engineering. Stuff like wiring the connectors wrong so they have swapped speakers or swapped polarity tell me that they were not even doing the very bare minimum of QA. The cables were wired and shipped, never tested. No one quite knows what the magic box with capacitors are for- the 470 microF capacitors don't make sense as a crossover network.

That seems to have calmed down and bugs fixed and their manufacturing sorted out. The F model kit with DSP and subwoofer in particular seems like they finally worked out all the bugs with people here as unwitting beta testers. I expect that if you have a pre-refresh Model 3, you can buy these and get a reasonable experience.

However, I think that experience detailed in this thread tells us that you don't want to be the early adopter for any Hannshow product. If you've got a refreshed 2021 Model 3 I definitely would not buy whatever they are currently shipping.


BTW- there is a new TopFit harness that is a cheaper option off Amazon. I bought this for the connectors and wire, and am going to cut it up to install my own DSP amp. It's a really poor design, does a triple parallel of front dash speakers+tweeters+imaging which means a 1.6 ohm load on the amp. That's a really terrible idea. This is how the original cables from Hannshow and TeslaOffer came, so maybe these are hand-me-down cables that didn't sell.

These cables for activating the speakers is not a bad idea, but don't do more than two speakers in parallel. That's 2 ohms and nearly any amp can do that without problems. So Dash+tweeters and RearDoor+BackDeck is OK, but cut the wires to the round imaging speakers on top of the A pillar. They are the least valuable component.
 

Stinvil93

Member
Jun 11, 2021
6
2
Florida
I have a 2021 model3 without the radar. I picked it up June 9th. The kit still does not work. I am still waiting for in update from the engineers. Opting for a refund if they do not have a solution. Then I will take the refund and install my own system. I only have sound in the front two speakers and the speakers on the dash. The rear and subwoofer and rear deck speakers do not work. They sent me an update for the DSP but it disabled the door speakers and only the speaker right being the touchscreen works. So as of now I have it disconnected. Waiting for a solution.
 

GregoryK

Member
May 15, 2021
59
18
Canada
I have a 2021 model3 without the radar. I picked it up June 9th. The kit still does not work. I am still waiting for in update from the engineers. Opting for a refund if they do not have a solution. Then I will take the refund and install my own system. I only have sound in the front two speakers and the speakers on the dash. The rear and subwoofer and rear deck speakers do not work. They sent me an update for the DSP but it disabled the door speakers and only the speaker right being the touchscreen works. So as of now I have it disconnected. Waiting for a solution.
All speakers seem to work in my case but the wiring is incorrect and the tweeters are barely audible. It should be instant refund but with the service I have had so far I doubt you will get money back. These guys are a joke and they have no idea what North American customer service is all about.
 

GregoryK

Member
May 15, 2021
59
18
Canada
So one of the rear JL Audio speaker I installed in the parcel shelf had a broken tab - so was not getting a signal. I pulled out the shelf and fixed the wiring. This had a big positive effect on the way the system sounds. It is now pretty awesome with less bass. Balanced. I spent an hour tweaking using the DSP software. Happy to share the file if anyone wants it.
I am now pretty happy with my purchase.
 
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marc4728

Member
Jun 23, 2021
5
0
canada
So one of the rear JL Audio speaker I installed in the parcel shelf had a broken tab - so was not getting a signal. I pulled out the shelf and fixed the wiring. This had a big positive effect on the way the system sounds. It is now pretty awesome with less bass. Balanced. I spent an hour tweaking using the DSP software. Happy to share the file if anyone wants it.
I am now pretty happy with my purchase.
so there is hope.. just waiting for that engineer 🥱
 

GregoryK

Member
May 15, 2021
59
18
Canada
The "engineer" sent me an updated file. It was a joke. I guess I was just lucky that everything sounds OK. Although the fader is not exactly perfect. It is 180% better than stock. I drove a 2020 loaner with the stock system and it sound terrible compared to the Hansshow system.
 

marc4728

Member
Jun 23, 2021
5
0
canada
The "engineer" sent me an updated file. It was a joke. I guess I was just lucky that everything sounds OK. Although the fader is not exactly perfect. It is 180% better than stock. I drove a 2020 loaner with the stock system and it sound terrible compared to the Hansshow system.
was that a firmware update or their (very bad) audio preset?
 

GregoryK

Member
May 15, 2021
59
18
Canada
Very Bad Audio Preset. I original which I modded sounds decent. Fade does not work on the front woofers. That is not a problem for me as there is no reason to need the fader....just a toy imho.
 

marc4728

Member
Jun 23, 2021
5
0
canada
I have a 2021 model3 without the radar. I picked it up June 9th. The kit still does not work. I am still waiting for in update from the engineers. Opting for a refund if they do not have a solution. Then I will take the refund and install my own system. I only have sound in the front two speakers and the speakers on the dash. The rear and subwoofer and rear deck speakers do not work. They sent me an update for the DSP but it disabled the door speakers and only the speaker right being the touchscreen works. So as of now I have it disconnected. Waiting for a solution.
They just told me that they are working on a new harness, if it works they will send a replacement (maybe next week)
 

GregoryK

Member
May 15, 2021
59
18
Canada
They just told me that they are working on a new harness, if it works they will send a replacement (maybe next week)
That is really scary. A new harness? Why does mine work then? They shipped the shipped wrong box?
Either way they are clearly not on top of things.
 

HKP_Tom

Member
Apr 5, 2018
141
69
Essex
To answer my earlier question (and Hansshow pre-sales are dreadful), the RHD 2021 DIY Harness DOES have rear speaker connections. So if I add my old 2019 rear shelf to my 2021, then I should be able to connect the rear shelf speakers too.

On my old 2019, the DIY harness did kill the bass from the door woofers, so it'll be interesting to see if it still does.
 

GregoryK

Member
May 15, 2021
59
18
Canada
This does not explain why the harness they supplied me for my 2021 late May build plays all speakers.... and yours does not. They did not know when my car was built.
Seems super random to me.
If they knew in advance that there would be a different why not add another option on theur site. 2021 without radar.
They are not on top of anything.
 

badiban

Member
Nov 26, 2019
195
51
Texas
To answer my earlier question (and Hansshow pre-sales are dreadful), the RHD 2021 DIY Harness DOES have rear speaker connections. So if I add my old 2019 rear shelf to my 2021, then I should be able to connect the rear shelf speakers too.

On my old 2019, the DIY harness did kill the bass from the door woofers, so it'll be interesting to see if it still does.
Kill the bass in what sense, like the speakers didn’t produce any sound? Or was the sound just reduced?
 

todd2fst4u

Member
Oct 26, 2019
259
200
Menlo Park, CA
This does not explain why the harness they supplied me for my 2021 late May build plays all speakers.... and yours does not. They did not know when my car was built.
Seems super random to me.
If they knew in advance that there would be a different why not add another option on theur site. 2021 without radar.
They are not on top of anything.
There are no wiring differences between radar and no radar vehicles.
 
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Stinvil93

Member
Jun 11, 2021
6
2
Florida
This does not explain why the harness they supplied me for my 2021 late May build plays all speakers.... and yours does not. They did not know when my car was built.
Seems super random to me.
If they knew in advance that there would be a different why not add another option on theur site. 2021 without radar.
They are not on top of anything.
i picked my car June 9th. My model 3 is one of the “NEW” “NEW” 2021 that come without the radar in the front. So their must be some sort of issues pertaining to the wire work. It can’t be my Tesla Model3 as it only had 30 miles on it from driving from the Tesla dealership to my house. I was in the process of adding some small touches to the car and I installed the system following there install steps. Once done my front door speakers worked and all sound was coming from there. I had no sound anywhere else in the system.

-No Sub
-No surround Rear deck speaker
-No rear Driver/passenger speaker
-No dead Speaker activation at all

I unplugged the system and reconnected my stock sound system and everything was back to normal. I proceeded to do this 2 more times and thought I had missed something but no everything was still not working. I was sent an update for the DSP and now only the front speaker behind the touchscreen works. So I disconnected the system waiting for them to fix this issue. My stock sound is fine and everything works. I think the big issue is that 2021 cars that have radar and “NEWER” 2021 that do not have radar have something different audio wise or wire wise that doesn’t allow the Hansshow product to be a direct plug and play as I purchased the version F. I received an update and it appears that they are sending me a new harness after July 4th. Other then the audio upgrade issue my SR+ is great!
 

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todd2fst4u

Member
Oct 26, 2019
259
200
Menlo Park, CA
i picked my car June 9th. My model 3 is one of the “NEW” “NEW” 2021 that come without the radar in the front. So their must be some sort of issues pertaining to the wire work. It can’t be my Tesla Model3 as it only had 30 miles on it from driving from the Tesla dealership to my house. I was in the process of adding some small touches to the car and I installed the system following there install steps. Once done my front door speakers worked and all sound was coming from there. I had no sound anywhere else in the system.

-No Sub
-No surround Rear deck speaker
-No rear Driver/passenger speaker
-No dead Speaker activation at all

I unplugged the system and reconnected my stock sound system and everything was back to normal. I proceeded to do this 2 more times and thought I had missed something but no everything was still not working. I was sent an update for the DSP and now only the front speaker behind the touchscreen works. So I disconnected the system waiting for them to fix this issue. My stock sound is fine and everything works. I think the big issue is that 2021 cars that have radar and “NEWER” 2021 that do not have radar have something different audio wise or wire wise that doesn’t allow the Hansshow product to be a direct plug and play as I purchased the version F. I received an update and it appears that they are sending me a new harness after July 4th. Other then the audio upgrade issue my SR+ is great!
They are sending you a new harness because yours is defective. There are no audio wiring differences between 2021 cars with or without radar. I’ve installed the harness I make in both varieties without any issues.
 

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