Hi Cambo,
Did you ever finish the solution for adding the missing center speaker to the 380W Meridian system?

 

I still have not found a Jaguar dealership, a stereo installation company, or even meridian themselves that can do this upgrade! The center speaker is there and it's done in the UK but I can't find anyone here in the US to do it??

 

I would not waste the money pursuing this. Take your car to audio shop and let them install an aftermarket DSP amplifier, high quality set of 3 way fronts, and a rear sub. You will be way happier in the end and end up with way more than you will ever get out of the 770 system. Helix V8 is a awesome choice.

 

Hi Jag Bass.
Do you know if it's possible to take the outputs of the head unit into say a helix dsp, process the sound.
Then feed it back into the power amp?:

 

You come out of the factory amp into the hi level inputs of the helix.You can then manipulate the signal in the DSP software on the laptop and tie the speaker outputs into the factory wiring to the speaker locations. You just need the front left and right tweeter, mid, and woofer door signals. The software can blend these back into a full range signal. If you are lucky enough to have most fiber running in your car, pre 2018 I believe, there is a oem audio interface that will allow you to delete the factory amp and hook straight to the main head unit which will give you a flat full range signal to work with. A quality audio shop can explain all this in much greater detail.

 

Hi Jag Bass,
Is it not possible to get a high or low level audio signal out of the head unit prior to sending it to the power amp?

 

No, if it is pre 2018 it will be fiber post 2018 on will use a digital ethernet system. You can't get analog until after the amplifier.

 

Hi Jag Bass,
This is my a picture of my head unit.
I don't see any MOST 25 fiber cable attached to it.
Also are those multi coloured wires carrying some sort of audio signal to the power amp?
How does it work?

 

Get a picture of the connections at the amp.

 

Not really sure how to get to the amp.
Can I get to it without taking anything apart?

 

No unfortunately you can't, It should be over the right rear wheel. What year is your ftype?

 

Hi,
It's a coupe.
Are the service manual or specs for my head unit available anywhere?

 

Again, what year is your F-type?

 

Hi,
Oh miss read,
Thought you said, what is your F-type.
MY-2017
​​​

 

So according to Mobrige, you don't have MOST25, it digital ethernet. You only option for aftermarket is speaker level into your aftermarket DSP/Amplifier. If you change any speakers you will not have the correct tune applied because the factory DSP/Amplifier profile is specifically tuned to the speakers it can with from the factory. This is when you will use the aftermarket DSP to flatten the signal and tune your system correctly with the speakers you have installed.

The slightly confusing part is the picture you provided is showing the Harmon Unit you have is dated manufacturer in 2015. So to be 100% sure you don't have Most25 fiber connection we need to see the connections at the amplifier.

 

Older post, but looking for confirmation from @Cambo or others.

2024 F-Type, Surround was not an option. BUT, the center speaker is present, and the amp shows as AUD4-16, PREM 16, and has PN: LK62-19C164-EA, and a manufacture date of 05/01/2023. This SHOULD be an amp that can perform at the 770W level, correct?

If so, the retrofit companies claiming the upgrade on newer models is software only would seem correct.

 

Thanks so much for the reply, this has been a long ongoing pursuit of mine lol! My big issue is trying to find a company here in the United States, particularly on the East Coast, I did upgrade the speakers the Twitter and the mid-range and put some soundproofing inside my doors and it did make a major improvement however it drives me crazy knowing that center speaker is there not working, I'm still searching for a company that can do this software update...

 

I've got a company I'm working with in Virginia, will update once I see how that goes. They've been able to turn on a lot of Land Rover European functionality, so Jaguar shouldn't be an issue.

I'm also converting to Euro taillights and Euro PIXEL LED headlights.

Trying to confirm that the designation of PREM16 and AUD4-16 is the correct amp for the 770 watt systems, as I believe it is. Do you have any knowledge on that? If the PREM16 designation is indicative, all the hardware is already present from factory and it's a matter of activation.

I haven't messed with the speakers yet, but I swapped in an SVR center vent cover (it's microsuede and matches the headliner) and confirmed the presence of the center speaker.

 

The reason the 770W surround system wasn't available on later '23 and '24 cars was because of the chip shortage. JLR had to ration their supply so the DSP chips that process the surround weren't installed in these cars. I don't think any software update can replace a missing CPU.

 

This is why I'm asking regarding the amp PN/label. If the amp is missing a chip, there should be a supercession for the part number, but by the VIN mine and by the VIN of a 2023 I have confirmed was delivered with Surround, the part number is the same. If there was a chip not installed or other modification or change to the amp, the part would show as superceded.

I think there's a claim being made here based only on forum speculation.