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post #1 of 12 (permalink) Old 10-14-2013, 09:22 AM Thread Starter
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Sonata Dimension audio system upgrade.

First of all, I want to thank this forum and its members for all the help received. I learned a lot about the car, the Hyundai service site that has all the diagrams, and tips in general.

I thought I'd create a new thread now that I finished, and maybe this can help someone else.

My goals:

1) better SQ. I thought the stock Dimension system lacked in several areas, but probably the thing that most bothered me was the fact that the highs were localized in the windshield, without blending with the lower frequencies coming from the doors.

2) Car should look stock, and I could not have any lost space in the trunk.

Components:

Electronics: stock HU, JBL MS-8 processor, Polk PA D5000.5 amp.

Speakers: Polk DB6501 components for the front, Polk DB651 coax for the rear doors, and Critical Mass SS82 8" to replace the stock sub in the rear deck.

So let's get to it. I tried to document with pictures most of the process, though I will not show how to remove door panels; plenty of how to's available.

(There's plenty of more pictures if you go to Photobucket)

First thing I did was to install the speakers, and used them with the stock system for a while. There was an immediate improvement in blending, although I lost output due to the ohms difference.

My initial intention was to install the tweeters in the sails; I even bought a pair of new sails so I could go back to stock if/when needed (Cas is leased). The sails are available in Hyundai parts sites for $18 each.
I was ready to get the wires through the Molex connectors to the front doors. Spent some time looking at several videos and pictures that show the right process. I did not want to have wires hanging around, or drill holes in the doors..... It had to be perfect.

I was able to disconnect the Molex, remove the rubber boot, and even see where to get the wires through (couple of empty slots). The problem. The Molex half attached to the car body does not pull out......it is removed by pushing it in. Removing it was not going to be a problem, but pushing it back in place would have been very difficult. Not impossible...but there is no space to fit a hand there from the inside. So I decided to go with the stock locations in the dash, and see how that worked.

Here's a few pictures of the Molex:



Here I show the empty slots where I was planning to get the wires through


And here you can see the part attached to the body....goes in, not pulled out as I expected.


And more pictures of the installed speakers. For the tweeters I made a couple of simple mounting brackets. For the sub, the process to get to the rear deck is a little tedious, but it was an easy swap. The stock sub has a plastic frame that is easily removed, and I used it to install the new one.


This little think is a monster. i did NOT expect this amount of bass coming from an 8 incher.


Beefy bottom....











Passing the power wire from the battery to the trunk was easy. I used the main grommet that has wires taped on both sides. Removed the tape and there's plenty of space to get up to a 0 gauge wire (Iused 4 gauge). The boot is pretty thin/weak so I tore it....but covered it with tape again and there's no sign. Here's a few pictures.









Here's how I am hooking up to the battery; once connected, the cover is closed and shows no sign of the extra wire.


Once you have it inside the car, removing the trim required to get it back to the trunk is pretty easy.


So now to the "main attraction". The trunk.

I placed the MS-8 and amp on top of the spare. I did it in a way that the whole board can be removed in under a minute to get to the spare, or to quickly go back to stock. Used Molex connectors for speaker inputs/outputs, and for power/ground I used special connectors and also a 12V disconnect switch (These are in a separate board attached with velcro. This stays in the car when the amp board is removed).

Here's some pictures. If you open the trunk there is no sign of this being under the covers. Not one cubic inch of space was lost.

Here's a few pictures.


Stock amp location; got the speaker level inputs to the MS-8 here, and alos the remote lead.



Extended the spare screw to secure the amp board.


Ground. Removed paint for good contact.



Amp board.


Jack fits perfectly there.....


Top left section is a separate board with 12V disconnect power/groud connectors. That section stays in the car.



Final product. Yes, looks crowded. There's several 2x4's to support an upper board. Don't want anything to crush my amps. You should be able to see all the speaker Molex at the bottom.



Upper board fixed to the 2x4's with velcro.





and voila. No signs of what's below.



Sorry for so many pictures.....turned out to be a long thread....

So how does it sound? Absolutely fantastic!!!! I had to have several "tuning" sessions with the MS-8. specifically playing with amp gaisnto get the best sound, but I am very, very happy with the outcome.

Last edited by RickA1; 10-14-2013 at 09:31 AM.
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post #2 of 12 (permalink) Old 10-15-2013, 09:15 AM
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Nice install.... love the extra room above the spare tire. My two amps reside there also.


RickA1:

"but probably the thing that most bothered me was the fact that the highs were localized in the windshield, without blending with the lower frequencies coming from the doors."

I like to listen to music with the sound-stage as far forward as possible.... you can minimize the localization by crossing the dash speakers as low as possible, in my case.... 200Hz high-pass on Dayton Audio RS100-4's. The dash isn't the most ideal location but in the Sonata.. it reduces any heavy modifications.
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post #3 of 12 (permalink) Old 10-15-2013, 10:00 AM
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Thumbs up Excellent write-up

Congrats Rick for your new setup! Makes me jealous

I'm just curious about one things; since you start after speaker level, did you noticed noise or sound distortion?

Was it possible to get the signal before the factory amp instead? I know Hyundai uses proprietary digital signal but wondering if there's any aftermarket adapters.

Good job!

Charles


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post #4 of 12 (permalink) Old 10-15-2013, 10:30 AM Thread Starter
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Originally Posted by sienna1 View Post
Nice install.... love the extra room above the spare tire. My two amps reside there also.


RickA1:

"but probably the thing that most bothered me was the fact that the highs were localized in the windshield, without blending with the lower frequencies coming from the doors."

I like to listen to music with the sound-stage as far forward as possible.... you can minimize the localization by crossing the dash speakers as low as possible, in my case.... 200Hz high-pass on Dayton Audio RS100-4's. The dash isn't the most ideal location but in the Sonata.. it reduces any heavy modifications.

Thanks Sienna. I also like a soundstage a bit forward, but the stock system was too far front, and way too bright, at least for my taste.

You don't need too many mods to put a pair of tweeters in the sails; the part is cheap if you want to be able to go back to stock. The problem is wiring them, in the right way through the Molex. Not impossible..... and probably easier than I thought it would be (getting the part attached to the body back in place, from the inside).

But I am really happy how it is sounding with the tweeters in the dash. I will let everything break in for some time before attempting any additional tweaking.

Quote:
Originally Posted by charlesj123 View Post
Congrats Rick for your new setup! Makes me jealous

I'm just curious about one things; since you start after speaker level, did you noticed noise or sound distortion?

Was it possible to get the signal before the factory amp instead? I know Hyundai uses proprietary digital signal but wondering if there's any aftermarket adapters.

Good job!

Charles

Thanks Charles. No noise or distortion.

Last edited by RickA1; 10-15-2013 at 10:33 AM.
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post #5 of 12 (permalink) Old 10-25-2013, 09:33 AM
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nice work im an installer and I really like the way you posted everything long thread you said I think its perfect for people that want to do some install themselves. I will post my install shortly my trunk is very similar to yours
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post #6 of 12 (permalink) Old 10-26-2013, 08:34 PM
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RickA1,

Nice job on the install. I have been deliberating on how set my system up and I think what you have done is EXACTLY what I have been looking for.

One question, any issues with using Bluetooth or NAV (if you have) with the JBL MS-8. I heard at one time there were issues with using the factory Bluetooth after the MS-8 was installed.

Would appreciate your feedback.

Thanks,
Jay
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post #7 of 12 (permalink) Old 10-27-2013, 01:45 AM Thread Starter
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Originally Posted by jayu969 View Post
RickA1,

Nice job on the install. I have been deliberating on how set my system up and I think what you have done is EXACTLY what I have been looking for.

One question, any issues with using Bluetooth or NAV (if you have) with the JBL MS-8. I heard at one time there were issues with using the factory Bluetooth after the MS-8 was installed.

Would appreciate your feedback.

Thanks,
Jay

Navigation works perfectly. Bluetooth streaming works perfectly. Only issue is with the phone, since the person you are talking to will hear an echo. Has not been a problem for me because when I use the phone on the car it's usually quick calls "I'm on my way"...."Do you need me to stop for something"....and such.

But I hear there is a firmware fix that turns off processing while you talk.
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post #8 of 12 (permalink) Old 11-07-2014, 11:54 PM
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Nice job. I am in the process and have a question. When you tied into the factory speaker wiring, did you cut the wire or use a wiring adapter like one from Schosche or Metra?

Also someone asked about tying in before the amp . I have done some research on this and have not found anyway to do it. Thereally is a post on a veloster site where a couple of electrical engineers were discussing what it would take, but it didn't seem like it was doable at the installer level .
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post #9 of 12 (permalink) Old 11-08-2014, 04:17 PM Thread Starter
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Originally Posted by wadester999 View Post
Nice job. I am in the process and have a question. When you tied into the factory speaker wiring, did you cut the wire or use a wiring adapter like one from Schosche or Metra?

Also someone asked about tying in before the amp . I have done some research on this and have not found anyway to do it. Thereally is a post on a veloster site where a couple of electrical engineers were discussing what it would take, but it didn't seem like it was doable at the installer level .
I used the wiring schematics from the Hyundai site (They are posted somewhere around in this forum), and then cut the wires and used some molex connectors to go to the MS-8 /AMP and back.
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post #10 of 12 (permalink) Old 11-11-2014, 05:31 PM
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"I placed the MS-8 and amp on top of the spare. I did it in a way that the whole board can be removed in under a minute to get to the spare, or to quickly go back to stock. Used Molex connectors for speaker inputs/outputs, and for power/ground I used special connectors and also a 12V disconnect switch (These are in a separate board attached with velcro. This stays in the car when the amp board is removed)."

This is exactly what I want to do. Can you tell me where you got the disconnects and Molex connectors?

Thanks,

wadester999
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