You will need to do like Ja'Crispy said. Get yourself a mono sub amplifier that accepts speaker level inputs. You basically tap the existing speaker outputs instead of using RCAs.

OR,

A more quality option would be grabbing an AudioControl LC2i. It will use a set of speakers as input (rears or front woofers) and convert them to line level with RCA outputs. It also has Accubass which corrects bass rolloff that the OEM system may produce.

Have one in my 2014 Elantra Limited with Nav. I since have upgraded to the LC7i and am powering a sub amp, and a 4 channel with all new speakers. Works flawlessly and should work just fine for the new ES.

(Side note: I don't own an ES yet. Just a hardcore lurker looking to upgrade in the next few months and thought I could help. Audio is my strong-point with modding.)

 

Thats... interesting.

You need to not have that there, it makes me itchy.

 

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Hold up, you haven't even seen my dope AF cable management system.

That made me chuckle

 

SO I got the sub to work, bit more research and all, the kit had everything I needed pretty much, will post up install pics and a more detailed write up in coming days.

 

Waiting for the pics Can't wait to upgrade the sound system. I have a mono amp and 12" pioneer sub that I bought to install in my previous car. Not sure what is the best place to tap for the sub.

I wish these cars were like my previous VW's that only had one wiring package, so the wires were there for options you didn't have. You just had to buy the options and you could plug them in to the existing wires. It would make it so much easier if the subwoofer wiring that they use on the premium system went to the trunk in the base models.

 

Yeah the hole is still there for the sub on the base cars.

 

So I ended up buying a self contained sub/amp combo to try and install, one of these bad boys. https://www.pioneer.com.au/shop/car/ts-wx120a/

The spot behind the centre console was a PERFECT size, slightly raised by really flat thanks to the car being a front wheel drive, excitement was rising.

So I pull the dash apart and get the deck slid out and it has neither of the two connections this unit needs to connect (Speaker line input or RCA input).

Looks like if you have the base 7" unit / 6 speaker system, you're plum outta luck trying to add a subwoofer to that setup, unless someone here knows a good solution given what I've said? Here are some pics of the back of the unit.

 

You will need an amp with speaker level inputs, then need to use taps to split off the front or rear speaker outputs from the head unit.

 

Yah so I went with the Pioneer option like yours and placed it under front passenger seat. I trimmed the plastic off the air vents to have the sub seat flush under and worked out awesome. This little thinkg makes a difference! Thanks for the sharing.

 

You can bolt it under the rear window ledge. There is steel there. Use steel straps (very cheap) to get it tight and use foam sheet against the steel.

 

Someone said the premium system includes a sub on the rear deck, and the hole is there on the base system. I havent stuck my head under there to look at that yet...

Secondarily, what speakers did you put in?

Edit: Ironically enough, I JUST stumbled upon this deal... Im thinking of grabbing it up.
http://www.harmanaudio.com/refurbis...tart=1&utm_source=cj&utm_medium=affiliate&utm_campaign=gt-basspro12-z-100-aug13

 

How big can that sub be? span of the hole itself seems to be about 7 inches but he mounting holes could be 8", and would I then need to cut though the parcel shelf which has no hole in it?

 

I was thinking 8" maybe? I'll have to look at it again.

 

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Anyone measured up the sub and can also tell/show me if there is a hole for it on the top of the parcel shelf? I see the hole from inside the boot.

 

Just measured the hole, 7" across. So I believe that will fit an 8" sub? There are two smaller holes closest to the trunk opening for mounting, but that's it.

 

Can anyone with the premium sound system and the stock subwoofer fitted please take and share some above/below photos? I'd like to get an idea what I'm up against and from the bottom side it seems like part of the boot mechanism runs awful close to the hole for the sub on my car so I want to suss that out.

 

It's mounted to the parcel shelf in the rear and my windows are tinted, so it would be very difficult to get any meaningful shots from above.

 

Also curious about this because car audio (not overdone) is extremely important and I plan on a base dct. Can we verify that the stock premium audio is 7" or 8"? And double up on the pictures.

Also get that **** thing out of your backseat hahahaha

 

Can we verify that the stock premium audio is 7" or 8"?

The stock sub with the premium audio should be 8".

 

What about the use of something like this https://www.jaycar.com.au/speaker-high-level-to-line-level-converter/p/AA0482

With taps, then I'm assuming that the speakers I've tapped will still work as per normal, and I get RCA out to connect to the amp? I am quite keen to use the Pioneer unit I linked earlier.

 

Something like should work - on paper. I would be hesitant to put something that inexpensive in line. If your route is to convert the signal pre-amp, I would go with this.

https://www.crutchfield.com/p_161LC2IB/AudioControl-LC2iB-Black.html?tp=70736

 

I want to convert signal to preamp but I want to keep all current speakers working as they are now, not off a new amp.

 

LC2i would be your absolute best bet in my opinion if all you are looking to do is add a sub. They can be had fairly cheap on Amazon/eBay and would produce much better quality signal than a traditional line out converter. Your factory speakers will operate as normal while the LC2i generates a signal for the subwoofer amplifier.

 

I bought a 6 pack of wire taps, got the deck out and tapped the rear left and right speakers in the immediate few inches of wire coming out of the deck. The only other thing that I needed that wasn't in the box of the Pioneer TW-X120A was a micro fuse "add a circuit" (happy to take pics of how I installed that in the fuse box too) and a 1.5 metre Rca male to female extension.

All the cables are run under interior paneling (mostly centre console under the armrest) and a pic here shows the only part of exposed cable. I put the little controller for it in the glovebox, had to reverse phase or bass was non existent (glad they include such an easy way to reverse it), and I have it set on maximum gain.

All in all it's very impressive when you consider the footprint, it's about the size of a 10" tablet but obviously thicker, the placement I've chosen is great to not put too much bass under someones butt (plus foot air air vents prevent a perfect under seat install). Sure it's no 12" in a box but as I said, it's well decent.

Feel free to ask Q's about the install.

 

Subwoofer options.



Hi I'm new here . Did you tap the rear left and right speakers from the back of the deck? What did you use for the remote signal?

 

I think the talk here has been about the stock system. How is the Premiere Package sound system? That much better and worth it? Or would people want to upgrade that as well? I see 2017 Civic Si owners hating their "enhanced" sound system. Wondering if the better Hyundai system isn't up to snuff either? Just a glance at youtube reviews say it's excellent. But you never can tell. Any thoughts on how good the better system is? Would hate to spend the $2400 for the upgrade and then have to upgrade from there.

 

I have the premium package and I really like the infinity system. The increased size of the display is nice and has all the options I would want. My wife has a Veloster with premium stereo which has more wattage, but overall I think the Elantra system sounds better, more refined. The Veloster system may be a tad louder overall with more bass. The subwoofer is placed in a wierd position on the upper frame of the trunk in the Elantra with no cover or enclosure. It's almost as if they planned for the trunk to be the enclosure but that's a lot of square footage. If I was to upgrade, I would possibly see about an upgraded 8" sub to possibly get a tad more bass, otherwise I'm very content with this system. I wonder if a smaller enclosure could be molded to the upper trunk region to tune the subwoofer.

 

I guess from my perspective the base AU spec comes with the sunroof and blind spot/cross traffic/heated seats etc, so it's kind of most of the tech package anyway? just the smaller 7" screen instead of 8" but it certainly doesn't seem small and 6 speaker not 7.

Anyway all up I've spent ~400 AUD so about ~300 USD on upgrading all the interior speakers and adding the sub and the result is quite a great system now, it would be interesting to see how mine would compare to the 7 speaker infinity system, but I'm in Aus so you'd need someone on the US mainland that has done the same to test that. I guess I can't honestly see the 7 speaker system coming with speakers like the kickers I've put in, but the sub could well oust the TW-X120A sub I've used.

 

Where are you in Aus? Im in Sydney and Im about to have a small slim powered sub installed. I wanted to buy 8inch to put in the spare hole in the boot but no one wants to install it saying it will sound crap and vibrate. They said the ones that do have the stock sub in there will have little power compare to an aftermarket sub hence there mabe no vibration to the stock sub. I have no idea cause I dont have a stock sub.

 

hey i have premium package and it sounds pretty good just needs a little more base i have several subs and amps laying around im planing to run an loc off the factory am for the rcas

 

To summarize....

Is there sub replacement option that is better that stock that uses the stock wire? Can I just replace the stock sub with a better one? Or is the box (trunk) holding back the sub's capability?

 

When I asked around in Sydney nearly all said not to install it in that stock rear position cause it will vibrate and blah blah. I ended up with a powered sub that fits under the passenger seat. Required wiring was all included with the sub I got. Also, I think you will need to have another amp to power a sub that you would put in the stock rear position cause the stock head unit will not power up an aftermarket sub or not power it up well enough. Thats what I was told anyways.

 

Lol, I said I didn't want to compromise trunk space either.........But then I said **** it

 

well my Blaupunkt 8" GTHS80 works just fine for me i didnt bother trimming the plastic vent, removed it altogether.

 

Wait you got that sub sitting right under the drivers seat aha? Love how small and compact it is. What kind of rms is it putting out?

 

Too bad there's no full on bluetooth speaker system where wires aren't necessary. Except for power. Bluetooth 5 is very high quality.

 

Hey CoolRonZ, I know this is off topic; but did the 3" cat-less down pipe make a noticeable difference?

 

oh i am sorry, i never noticed the question, actually for sound alone its worth it. but stock i didnt notice much but my tune liked it and my tune liked my secondary cat gutted also. little more turbo lag but little more fun middle and top end...