06 LC - subwoofer replacement (1 Viewer)

[varun bhargava]

My subwoofer was blown and I need a replacement that sounded better than stock, added a substantial amount of bass and if external could be removed to maximize storage area. After looking into it I decided on a 10" subwoofer which meant it wouldnt fit in the stock opening and required an enclosure. One of the main things I wanted to do was make it easy to add/remove so I installed terminals in the rear.

Parts List:

Subwoofer: https://www.amazon.com/gp/product/B073JVXVD8/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1
Enclosure: https://www.amazon.com/gp/product/B0013N0UCQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Terminals: https://www.amazon.com/gp/product/B07C9CCG35/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Speaker Cable & Plugs: https://www.amazon.com/gp/product/B01LY8ESIH/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1

Overall impressions:
Plenty of bass using the stock amp and it only cost ~$150.

The project end to end took about 3 hours.

1. Add 4-way terminal to the enclosure. Required some dremelilng but was easy.
   
   
2. Wire the subwoofer to the terminal and screw it into the enclosure.
   
   
3. Take apart drivers rear panel, extend factory wiring. The trickiest part here is that the amp wiring is counterintuitive. BLACK is + and RED is -.
   
   
   
   
   
   
   
   
   
   
4. Add 4-way terminal to back to LC
   
   
   
   
   
   
5. Put panels back together
   
   
   
   
   
   
6. Wire up and install the enclosure
   
   
   

 

[YardPig]

Very nice! I'm sure it really thumps!

 

[Biga27110]

My subwoofer was blown and I need a replacement that sounded better than stock, added a substantial amount of bass and if external could be removed to maximize storage area. After looking into it I decided on a 10" subwoofer which meant it wouldnt fit in the stock opening and required an enclosure. One of the main things I wanted to do was make it easy to add/remove so I installed terminals in the rear.

Parts List:

Subwoofer: https://www.amazon.com/gp/product/B073JVXVD8/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1
Enclosure: https://www.amazon.com/gp/product/B0013N0UCQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Terminals: https://www.amazon.com/gp/product/B07C9CCG35/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Speaker Cable & Plugs: https://www.amazon.com/gp/product/B01LY8ESIH/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1

Overall impressions:
Plenty of bass using the stock amp and it only cost ~$150.

The project end to end took about 3 hours.

1. Add 4-way terminal to the enclosure. Required some dremelilng but was easy.
   
   
2. Wire the subwoofer to the terminal and screw it into the enclosure.
   
   
3. Take apart drivers rear panel, extend factory wiring. The trickiest part here is that the amp wiring is counterintuitive. BLACK is + and RED is -.
   
   View attachment 1695417
   
   View attachment 1695418
   
   
4. Add 4-way terminal to back to LC
   
   View attachment 1695420
   
   
5. Put panels back together
   
   View attachment 1695424
   
   
6. Wire up and install the enclosure
   
   View attachment 1695430

Thanks for posting. why do you use 2 pairs of terminals?

Which wires did you tap into and how?

 

[varun bhargava]

Thanks for posting. why do you use 2 pairs of terminals?

Which wires did you tap into and how?

The stock amp is dual channels for the subwoofer meaning it pushes out separately for L and R. That's why I am using a Dual Voice Coil subwoofer (2 sets of wires). The wiring and OEM subwoofer can be found on the rear driver panels. See picture below for reference. Note that the subwoofer in the picture is not stock but is using the stock location and enclosure.

 

[varun bhargava]

Thanks for posting. why do you use 2 pairs of terminals?

Which wires did you tap into and how?

Great post on getting access: How to: Replacing OEM Subwoofer in 3rd Row

 

[Biga27110]

The stock amp is dual channels for the subwoofer meaning it pushes out separately for L and R. That's why I am using a Dual Voice Coil subwoofer (2 sets of wires). The wiring and OEM subwoofer can be found on the rear driver panels. See picture below for reference. Note that the subwoofer in the picture is not stock but is using the stock location and enclosure.

Thanks im familiar with that area ive installed a sub there but interested in installing an external one. Did you tap at the rear by the sub?

Where is the s6 connector you tapped into?

 

[varun bhargava]

Thanks im familiar with that area ive installed a sub there but interested in installing an external one. Did you tap at the rear by the sub?

Where is the s6 connector you tapped into?

I just tapped at the rear by the OEM subwoofer. S6 was mostly for the wire color coding you will need.

 

[Biga27110]

I just tapped at the rear by the OEM subwoofer. S6 was mostly for the wire color coding you will need.

Perfect thanks!

 

[Blackbirdaerial]

My subwoofer was blown and I need a replacement that sounded better than stock, added a substantial amount of bass and if external could be removed to maximize storage area. After looking into it I decided on a 10" subwoofer which meant it wouldnt fit in the stock opening and required an enclosure. One of the main things I wanted to do was make it easy to add/remove so I installed terminals in the rear.

Parts List:

Subwoofer: https://www.amazon.com/gp/product/B073JVXVD8/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1
Enclosure: https://www.amazon.com/gp/product/B0013N0UCQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Terminals: https://www.amazon.com/gp/product/B07C9CCG35/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Speaker Cable & Plugs: https://www.amazon.com/gp/product/B01LY8ESIH/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1

Overall impressions:
Plenty of bass using the stock amp and it only cost ~$150.

The project end to end took about 3 hours.

1. Add 4-way terminal to the enclosure. Required some dremelilng but was easy.
   
   
2. Wire the subwoofer to the terminal and screw it into the enclosure.
   
   
3. Take apart drivers rear panel, extend factory wiring. The trickiest part here is that the amp wiring is counterintuitive. BLACK is + and RED is -.
   
   View attachment 1695417
   
   View attachment 1695418
   
   
4. Add 4-way terminal to back to LC
   
   View attachment 1695420
   
   
5. Put panels back together
   
   View attachment 1695424
   
   
6. Wire up and install the enclosure
   
   View attachment 1695430

 

[Blackbirdaerial]

Thanks for this! I am following this to a T. I have a question though.... you have 4 wires comming out of the amp and 4 wires out the back of the sub / enclosure. You are basically just lining those up correct? How has the setup been working out since your original post??

 

[varun bhargava]

Thanks for this! I am following this to a T. I have a question though.... you have 4 wires comming out of the amp and 4 wires out the back of the sub / enclosure. You are basically just lining those up correct? How has the setup been working out since your original post??

Yes, just lining the wires up. Setup has been working out perfectly without any issues. I would consider putting a grill over the subwoofer to prevent things in the trunk from hitting it. Let me know if you have any additional questions.

 

[varun bhargava]

Yes, just lining the wires up. Setup has been working out perfectly without any issues. I would consider putting a grill over the subwoofer to prevent things in the trunk from hitting it. Let me know if you have any additional questions.

Quick note. There is no S6 connector just wires by the driverside rear wheel.

 

[Blackbirdaerial]

Quick note. There is no S6 connector just wires by the driverside rear wheel.

Just figured that out! Thx! So far so good on everything. Just cut into the harness and about to extend the wires

 

[NCMTNS]

Reviving old thread. My teenage daughter drives the LX470 and thought this would be a good project to add some bass to the system. Basically follow what varun did but used a ported box. Here are some pics.

Used these speaker terminals:
Amazon product ASIN B00YN3NN5E

Soldered wire

I chose the Kicker CWCD 104 4 ohm dual voice coil. Liked the cost as well as the sensitivity rating since was going to use stock amp.

Overall very pleased with setup. Plenty of bass. Teenage daughter thinks so too.

 

[NCMTNS]

 

[NCMTNS]

FYI I have a 2004 LX470 with ML stereo. As for the wire connection that was spliced there were 4 wires but only two were being used by existing subwoofer, which were blue/black and blue/white. The other two, blue/yellow and blue/red were not used. I used a 9 volt battery to get proper phasing:

1st pair

• Blue/black - positive
• Blue/white - negative

2nd pair

• Blue/red - positive
• Blue/yellow - negative

Also confirmed the second pair were powered by amp.

Will also add banana plugs to wires that connect to subwoofer box.

Thanks @varun bhargava. After seeing your work got me inspired.

 

[implayaz9]

Is the OEM subwoofer a 10 inch?

 

[ramangain]

No. It's just a piece of garbage.

 

[Vector7]

Is the OEM subwoofer a 10 inch?

It's a dual voice coil 5.75" sub. And yes it's not very good.

 

[highkick05]

Good write up. Been looking for a more simple breakdown of this.