 | Home > In Car Electronics (L663) > Meridian to retrofit Meridian Surround Amplifier |
 
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| awktm Member Since: 19 Jun 2024 Location: Melbourne Posts: 14  
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This might help someone, I have worked out these are the pinouts:
 Click image to enlarge I have now wired in the amp to all existing 11 speakers and working. I now need to add the rears in the headlining (or similar location) as the backup sensors beep on those speakers. I would also like to add the front mid and tweeter to get a better soundstage. Next project is working out how I wire up through the telematics module so I don't lose the telematics function. Click image to enlarge Click image to enlarge |
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7th Aug 2024 11:12am |
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| elvin Member Since: 24 Apr 2023 Location: Victoria Posts: 4
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Impressive! Thank you for posting this and keen to see any more follow ups!
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8th Aug 2024 3:16am |
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| haymeister Member Since: 24 May 2021 Location: Saitama Posts: 281 
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Indirectly related:
Can you confirm that the front centre speaker above the front air vents is present (it is there for me) but it is not active and there is no sound? And if I were to retrofit the Meridian Surround Amp then this would 'activate' the front centre speaker? 22MY Defender 110 D300 S in Pangea Green and Contrast White Roof IG defender_japan "Hulk san" |
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8th Aug 2024 6:45am |
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| awktm Member Since: 19 Jun 2024 Location: Melbourne Posts: 14
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It is a different speaker, you would need to upgrade that speaker and also add the tweeter. You would then need to activate the speaker and run wires for the tweeter.
I am happy with the sound without the front centre channel |
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14th Sep 2024 1:23pm |
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| isugoo Member Since: 18 Feb 2025 Location: California Posts: 20 
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I just want to thank you for sharing this. Very helpful for my upcoming audio upgrade planning.
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15th May 2025 9:39pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20912 
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Just out of curiosity, where did LR fit the factory Amp? _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___ ____\We|Will|Win/___ ____/🇬🇧🇺🇸\____ _//*⛽️🛢️⚙️🧰*\\_ |
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15th May 2025 10:19pm |
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| isugoo Member Since: 18 Feb 2025 Location: California Posts: 20
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Amp is in the left side trunk side wall (at least for the US cars).
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17th May 2025 5:43am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20912
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Thank you - interesting to know.
 _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___ ____\We|Will|Win/___ ____/🇬🇧🇺🇸\____ _//*⛽️🛢️⚙️🧰*\\_ |
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17th May 2025 5:32pm |
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| SynergyAero Member Since: 01 Jun 2025 Location: Florida Posts: 2
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Great info, thank you! Does anyone know if there is a MOST connector in the system anywhere? Does not appear to be one at this amp (same one as pictured above). I am integrating with my Meridian 16-ch surround system, and trying to avoid the complication of de-equalizing and summing the channels.
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1st Jun 2025 8:53pm |
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| Fifth Horseman Member Since: 08 Mar 2011 Location: Lanarkshire Posts: 338 
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None of the current Landrover audio systems use MOST. IIRC the last ones that did were the L319, L320 & L322 (D4, RRS & FFRR) and L405 up to about 2016 Defender 110 D300 X-Dynamic HSE MY22
Defender 110 Station Wagon 2011 (gone) Defender 110 DCPU 2007 (gone) |
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1st Jun 2025 10:35pm |
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| SynergyAero Member Since: 01 Jun 2025 Location: Florida Posts: 2
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Thank you Fifth! I'm planning to just use a Helix Ultra S DSP to handle the pre-amp signals.
On a side note, has anyone been able to source the connectors that would mate to the factory plugs going into the amp? I would love to make my own harness for the pre-amp signals and for the speaker outputs, so that I do not have to cut the factory harness. |
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21st Jul 2025 5:42pm |
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| isugoo Member Since: 18 Feb 2025 Location: California Posts: 20
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I recently upgraded front 3-way speakers. And in process of upgrading rear speakers, subwoofer (under rearseat on D90) and Helix V12 amp.
My shop I used for a few cars were really good at finding OEM harnesses so far. But they had difficult time for LR but found 3 out of 4 (needing one female I believe - its on backorder and ETA to ship from EU end of the month). Once they get it and I'll install and let you know if it's all correct ones then you can order it from my shop in SoCal. |
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21st Jul 2025 6:27pm |
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