Car Audio Speaker Wire to RCA Line Output Converter, 2-Channel High to Low RCA Converter for Adding Amplifier Subwoofer to Stock Stereo

used this NuIth RCA line output converter to install an aftermarket radio and subwoofer in my 2007 Toyota Avalon, and it worked perfectly. It was exactly what I needed to get a clean RCA signal from the factory speaker wires. The wiring was simple — just tap into the speaker lines and connect your amp RCA cables. It’s compact, solidly built, and the signal came through clean with no noise, buzzing, or distortion. It made adding an amp super easy without needing to completely redo the wiring or rip out the stock harness. For the price, this is a great little tool to have if you’re adding a sub or amp to a stock or aftermarket system without RCA outs. ⸻ 🔧 Pros: • Clean signal output — no interference • Easy to install — wiring is straightforward • Great for factory or aftermarket radio setups • Worked perfectly on my 2007 Avalon • Compact and well-built Cons: • Doesn’t come with wiring instructions (but easy if you’ve done installs before) ⸻ Final Verdict: If you’re upgrading your sound system and need RCA outs from speaker wires, this converter does the job right. I’d definitely use it again — highly recommended for any DIY car audio setup.

Fantastic

Works great. This function exactly as it should. I have been using this for a while now and have 0 complaints. Easy to install as long as you know what you are doing. Its small enough to be easy to hide. The sounds is clean and clear. The price feels worth every penny.

This low converter works very well. The price point is nice. It's very simple to install. As stated by others it's extremely important to make sure you have your speaker polarity correct! Also, the instructions fail to mention that the 12v power source needs to be wired to an accessory feed (one that turns on and off with the ignition switch). Otherwise the converter will be on always. This is especially important if you plan to use the converters blue wire to trigger your amp! Because if the converter is always on, so is your amp = dead battery. Other than that, no complaints, but that wiring detail cost the product one star off my review.

Great product was easy to install and I can have factory deck with aftermarket speakers

Junk. Hooked it up for first time and didn’t even work was already burnt out.

Father in law approves

No complaints here... Works as it should... Have it connected to a 2024 Chevy equinox with a Kicker 15 Solobaric and kicker 1,000 watt amp... It does stay on a few mins after car is off, but that's because the acc stays on about a min after car is off

Installed for amplifier in my boat. Before as soon as i turned on my inverter a loud buzz would come from speakers. Installed a power filter with little improvement. Install this thing and no more buzzing at all. Great thing.

Works amazingly to wire my 2 subs into my factory wiring!

Easy install, works great so far

Works good so far. Easy instructions and install. Only thing is i wish the wires werent so cheap i can see them failing in the future. Sound quality seems great.

Worked great in my 2015ford f250 xlt I wired them into the rear door speakers just behind my stereo and then ran them to my amp and it worked great