Subwoofer Install

[JLayer]

Does anyone have a solution for a fuse that can be used as a remote turn on. I don’t want to run a wire to the front of the car where I know I can find one... I’d like to keep it contained within the trunk

Lc2i for remote is what I used to keep everything together in the back.

 

[SlowBW]

Just wanted to share some of my install - Need to wrap the harnesses and tidy it up a bit (got some shorter RCA's coming) but overall I am happy. Now I just have to go through the interior and clean up all the vibrations from the new sub.. haha!

I got a smoking deal on the sub / box from Best Buy as an open box.. The box fits within 1/2 inch from the top of the trunk in the rearmost position.

I ended up clipping my 5BW ANC wires - with enough room to resolder them in the future.

I tapped into the right 6x9 for signal to my LC1i. Works fine.

Once its cleaned a bit more I think it'll be nice and presentable..

 

[ngoni]

Looks really good. How are you going to secure the box so it doesn't shift around when you drive the BW as intended?

 

[1Evil55]

Will a set of golf clubs still fit?

 

[Emu1342]

Just finished up my build.

 

[mfcentex]

Just finished up my build.

Looks awesome! Do you have any pics of the build process?

 

[Emu1342]

Looks awesome! Do you have any pics of the build process?

Thanks! I went for an OEM+ type look. Check out my Build Log: My Subwoofer Enclosure Build Log

 

[MeGoFast]

Here's my install: 5V Blackwing Trunk/Sub Install

Simple method to install in the tirewell and keep the whole trunk for use.

 

[mfcentex]

J

Post in thread 'Subwoofer Install'

Feb 12, 2025

So I actually got a reply back from LLJ on which harness to use based off the code for 4BWs. Here's the one that you need.

ANC bypass harness GMC vehicles W/ UQS,UQP,UQA,UQF RPO Code 2021-Up

This GMC Buick ANC bypass harness was designed for vehicles that have the factory Bose amplifier and an RPO code of UQA,UQF,UQS,UQP. This chevy ANC bypass harness is ideal for disabling and preventing feed back of the factory ANC system, when adding an aftermarket subwoofer. This harness works...

lljcustoms.com

I haven't purchased it. I ended up just cutting all 3 wires the day before they sent the reply back. I haven't drove the car since cutting the wires so I don't know if I have any feedback still or louder noise driving the car.

I'm still getting weird bass signals though. It's really reserved at first then gradually comes in after a few secs or...

• JLayer

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Page 5 of this same thread

I ordered this one from LLJ and installed it over the weekend. It doesn't completely work. I noticed that sound inside the car was really muffled. With this bypass, my A-pillar tweeters are disconnected. Anyone had similar issues?

 

[Emu1342]

I ordered this one from LLJ and installed it over the weekend. It doesn't completely work. I noticed that sound inside the car was really muffled. With this bypass, my A-pillar tweeters are disconnected. Anyone had similar issues?

Contact LLJ directy. You may have plugged it in to the wrong slot, or they may have wired it incorrectly