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So a quick question to the guys that have started modifying. I have a LR without the Meridian Sound system. Going to build a custom box for an 8" sub / Autotek BTS amp. I'll need to pick up on the rear door speaker wiring (probably). Do you guys know the best place to pick up on the wiring? Does the rear door speaker wires run under the front door sill plates (the plastic trim just outboard of the front seats)?
 
So a quick question to the guys that have started modifying. I have a LR without the Meridian Sound system. Going to build a custom box for an 8" sub / Autotek BTS amp. I'll need to pick up on the rear door speaker wiring (probably). Do you guys know the best place to pick up on the wiring? Does the rear door speaker wires run under the front door sill plates (the plastic trim just outboard of the front seats)?
based on what I am hearing playing test tones you may want to use the front doors. The rear doors have limited bass that I think is being controlled by the amp. The fronts went well below 40Hz in my testing, but the rears did not.
 
Hi all,

I have been through this thread about speaker upgrade but it seems to focus on upgrading the sub which I’m not interested in.

I want to see if anyone has had success changing the speakers and tweeters in the doors? Ideally it would be a straight swap but quite honestly I’m not sure what I’m doing but I am sure some speakers would require more amplification; I just don’t know what the current (stock, non-meridian) system is outputting for power etc.

Also found a picture of someone who has taken their door panels off…. So, it’s definitely doable!

Many thanks
The amplifiers on very early in the production year EV6'S (2022MY EV6 (CV) vehicles produced from November 17, 2021 through February 15, 2022 ) have external amplifiers which are likely to fail. Affected cars were to have their audio systems inspected in different modes and update the ‘AMP’ software logic to improve noise and mute prevention logic, or to replace the AMP on some . Depending on the inspection results, the external AMP system software may need to be updated or the AMP may need to be replaced.

I was a First Edition preorder; my EV6 was produced in December 2021, and I took delivery on February 16, 2022. I'm definitely in the impacted group, and I'm currently waiting on the replacement amplifier.

EV6'S with this problem can exhibit all kinds of unintended problems, from blasting noise to dead silence. Most of the impacted cars have logic faults in the circuitry contained in the amplifier module which permanently MUTES the output of the rear channels. The easiest way to check for this is to go into the Sound settings and select Position. Center the Balance control on the bullseye (where everything should be equal).
Now move the balance to full front. Did you hear anything change? Now move the fader to full rear. Did you hear anything different? If you have the problem, you will hear the front speakers fade, but the rears will not change. This is because the logic circuits for the rear channels are permanently muted. Nothing you can do with the balance control will make the rears any louder. This doesn't just impact the subwoofer, ALL the rear speakers are muted.
If you are impacted, adding an amplifier to the subwoofer (or replacing it with a powered one) will improve the subwoofer output, but it won't correct the lack of output on the side mounted rear speakers. So taking this route is really a compromise, because the rear channels are still muted. In reality, you are merely amplifying a muted output for the sub, and leaving the other rear speakers muted. Even if you have taken matters in your own hands by adding an amplifier or totally replacing the subwoofer, (which does improve the sound), you still haven't addressed ALL the muted rear channels.
If you are one of the unlucky early owners, you really want to have this repair made so you can hear the Meridian system as was intended. Unfortunately, the replacement amplifiers are in short supply, so you may have to put up with the mediocre sound a little longer. But when it gets fixed, you will be amazed at the difference.
 
Thanks for your thorough explanation!
My EV6 has a date of 06/22 and it does not suffer from the mute issue.
But it did suffer from nearly non-existent sub audio until the installation of JBL Basspro Nano.
Now there's clear and fat bass presence in the car, but in the trunk, those side panel speakers sound
just awfully tinny.

But my nagging question is this:
Since I'm tapping right off the female sub harness, I am feeding the wires into the high-level inputs of
the amp/sub. So in order to verify polarity of those 4 pins, I probed them using the multimeter set to AC.
With a heavy-bass music playing, there is no reading (basically 0 no matter which pin I probe). Yes, I did test the meter with a normal AC outlet. If I set the meter to DC, it does register some values in mV.

Please can someone set me straight on what I should or shouldn't be doing?
By the way, as expected, polarity switch on the amp makes no difference in the audio.
So I'm trying to learn about the speaker voltage levels and how to measure them.
 
I'm planning to pull my car apart to investigate the speakers and amp in late October or early November when I have a spare car to drive for a few days. Once I get the speakers out i'll go down to my local shop and see if I can find speakers and adapters that fit for all the components. I'll post when I have that done. Maybe I can do it sooner if I get free time.... I'm itching to change the amp, but I need to figure out how the Balance/Fader/Surround is controlled. I'm hoping to replace the amp entirely, but I need to see what inputs are being used. I'm hoping the Rockford Fosgate DSR-1 will work.
My installer tested the iDatalink/Maestro RF DSR-1 with optical module, but it doesn't work yet with the EV6 or Ioniq 5. However, in the future it may support the EV6 and when it does I will have him swap out my Mosconi LD4C bluetooth receiver for the DSR-1. He mentioned that when measuring the POST stock amp signal, the frequency response was okay and the noise floor was above average compared to other modern AVHU he's worked on. I'm digging the results despite him having to tap off the amp high level outputs, but the sound should improve quite a bit once the digital signal can be taken directly from the AVHU. FYI, the stock amp is located under the rear seat which has to be removed to get access. If there are any specifics you would like to know, just ping me and I'll try and get some answers from my installer.

Btw, he was able to fit 2 10's in that space and it's not overkill at all:LOL:

Image
 
That was a must have, there's a braced hard wood/wire mesh cover that can withstand heavy luggage while allowing the amps and subs to breathe.

View attachment 9782
Wow that setup is impressive and may i be rude and ask a cost.
 
Installation costs were equivalent to 2 arms and 2 legs, let's just say I'm barely going to get half of my tax credit back. This was a total revamp so there's more to it then just what's shown in the photo. I'm happy with the craftsmanship and it sounds killer, worth every penny. The KIA logo was a surprise bonus which I thought was pretty cool of them to include in the design.
 
Installation costs were equivalent to 2 arms and 2 legs, let's just say I'm barely going to get half of my tax credit back. This was a total revamp so there's more to it then just what's shown in the photo. I'm happy with the craftsmanship and it sounds killer, worth every penny. The KIA logo was a surprise bonus which I thought was pretty cool of them to include in the design.
Do you have a thread showing the entire system transformation? I'm trying to climb the corporate ladder at KIA now before going all out aftermarket, but not sure how much longer I can handle the Meridian System in it's current state lol.
 
My dealer replaced my amp. It took them 3 days to get one, that seems pretty fast. It did not however fix the low rear volume issue. Mine aren't silent. Just very low volume (Unless they didn't replace the amp, 3 days seems fast as I thought replacement amps were on a long back order)
 
The door speakers and tweeters are upgradeable. Make sure the new speakers are the same size as the old ones if you plan to install new speakers. You can check the size of your car's speakers online. You should check out this website, as they have an article on car speaker sizes that helped me. In terms of power, it's crucial to ensure that the speakers you choose are compatible with your car's current audio system output power.
 
The door speakers and tweeters are upgradeable. Make sure the new speakers are the same size as the old ones if you plan to install new speakers. You can check the size of your car's speakers online. You should check out this website, as they have an article on car speaker sizes that helped me. In terms of power, it's crucial to ensure that the speakers you choose are compatible with your car's current audio system output power.
Do we know the power rating of the meridian 'premium' amp/channels? Thank you
 
Thanks for all the detailed information. This is useful information for the community.

Unfortunately for me, I don't have the Meridian sound system so I'll need someone without Meridian to do the same. I would have assumed they were the same sizes, just fewer speakers to replace but then you found the front and rear are different sizes so I'm not so sure I can assume.

You're not happy with the Meridian sound? I haven't heard it myself, but I've always been a fan of Meridian for home audio. I am aware some on the internet have expressed disappointment in the Meridian sound system.
When I get a chance I’ll do mine! I already got the wiring harness info so we can add a sub!
 
My installer tested the iDatalink/Maestro RF DSR-1 with optical module, but it doesn't work yet with the EV6 or Ioniq 5. However, in the future it may support the EV6 and when it does I will have him swap out my Mosconi LD4C bluetooth receiver for the DSR-1. He mentioned that when measuring the POST stock amp signal, the frequency response was okay and the noise floor was above average compared to other modern AVHU he's worked on. I'm digging the results despite him having to tap off the amp high level outputs, but the sound should improve quite a bit once the digital signal can be taken directly from the AVHU. FYI, the stock amp is located under the rear seat which has to be removed to get access. If there are any specifics you would like to know, just ping me and I'll try and get some answers from my installer.

Btw, he was able to fit 2 10's in that space and it's not overkill at all:LOL:

View attachment 9781
Hi redrum,
what is the volume of your subwoofer box? Is it one volume for both drivers or divided so that both have their own box?
Are those Gladen Aerospace or Gladen Pro, or Gladen Zero drivers?

How was stock amp provided with power, is there 12V+ somewhere around that can provide enough power?P
Did your installer run separate 12V+ line from the battery to the amp or did he connect it to the same place stock amp was connected?

Tnx
 
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