Factory Connection Harness to add a new Subwoofer Amplifier while retaining factory B&O including Unleashed (Read Description Below)

I have a 2024 Lariat 502a with B&O Unleashed speakers. The speakers themselves are really good, however it severely lacked in bass compared to other B&O systems I’ve had (2014 5 Series).

As I’ve looked across multiple forums, I found a post that recommended the Kicker KeyLOC from SoundsGoodStereo. I’ve never done any upgrades to car audio, so I gave them a call and they explained how the KeyLOC would work and how it would fix the factory bass roll off. Pulled the trigger on this during their Black Friday sale and recently got it installed with Skar Downward Facing under rear seat subwoofer box with 2 10 inch subwoofers.

All I can say is that it changes the experience immensely. Listening to music is enjoyable and especially if you like listening to music at louder volumes fixing the factory bass roll off is a game changer.

If you are looking to add bass to your truck, this pre-tuned Line Output Converter is the way to go. If you have any questions, give them a call. The person I spoke to on the phone gave some amazing tips as well which helped with the install (Running ground and power to the battery).

Plug and play, add power. Really that simple. I made zero adjustments used an Epic amp from Audiocontrol that has a pigtail used for an epicenter to power this. Perfect pairing

Had a question, they answered the phone and assisted! Good group of folks here. This made replacing factory BO sub easy.

Made the install painless. Worth every penny.

I utilized this harness with a JL Audio Stealthbox
on my 2020 F-250. Installation was simple and able to retain all other factory B&O components.

I wanted to upgrade the sub while retaining the stock stereo and speakers. I bought the JL Audio TW1-10 stealth box with a AudioControl 1.300 ACM amplifier, but this pre-tuned Kicker LOC was the key (pun intended) to the build.

This device is awesome. It plugs directly to the stock amp and allows you to add an aftermarket sub and amp combo. When I told my installer about this product, he was a bit skeptical. He was used to taking an off the shelf LOC or DSP and having to splice wires and do hours of tuning himself to make it compatible with the stock head unit. However these guys do all that "pain-in-the-ass" work for you. It is simple just plug and play.

I am using stock speakers and they sound great with the added sub. Full disclosure, my installer did have some issues initially connecting the LOC to the stock amp, as the fittings provided by SGS don't appear to fit. It was a bit of a stressful moment as I thought the project was stalled indefinitely. But a simple 3-way call with SGS and my installer cleared it up. A gentleman named Don from SGS talked to my installer, and said he had to cut off the connector they provided (I hope I am explaining this correctly, as I know nothing about audio electronics) and it would plug right in. After that, the install was seamless, and my stereo system sounds amazing. Highly recommend those who are looking to enhance their system on a moderate budget.

At first I was having trouble getting the Keyloc to power on. The harness supplied was perfect and exactly what I needed. The problem was that I was attempting to power the Keyloc with a bench top power supply powered by the truck's inverter. Once I had the Keyloc connected on the same ground path (without using the inverter) all was perfect. Great quality and great customer service. I highly recommend Sounds Good Stereo.

Was using an LC2i to get signal to my amp off the oem sub but couldn't get the bass adjustment right. Quick search on Google led me to SOUNDSGOODSTEREO.COM and I found this solution. Bass sounds clean and not overpowering. Programming is already done so this is plug and play out of the box. Install was easy. MY23 trucks have the amp on the passenger side of the back cab wall just FYI but the provided harness and rcas are plenty long to reach the driver side.

Plug and Play, and probably the best crafted custom harness I’ve used. The Kicker Key-LOC was pre configured and sounded great right out of the box. Having this allowed me to spend my time on sound proofing the car, instead of wasting it making splices, something that would have not have come out as clean as this.

Delivery was quick but seeing how I had to cut the plug meant to go into where the subwoofer plugs into I wasn't very happy. Seeing how that it didn't have the correct plug on it and had to splice into the wires anyways it was pretty pointless. All the other stuff I have ordered from them have been right on but not this plug for some reason. I'm sure if I would have called them they would have fixed the issue but it was the weekend and I was really just impatient which is on me and that is why I gave them 3 stars instead of only 2 stars.