3Pcs Universal RCA Level Controller with Audio Cables | Car Audio Bass Control Knob | RCA Stereo Cables | for Motorcycle, Home Theater, Speakers

Works... Fun fact it don't matter if how you connect it still works LOL... I did took it off from its case and installed on an empty space on my dash it looks OEM... Also easy to install

Cables didn't reach into the truck but used the old ones and works perfectly

I wish the cords where longer but it still gets the job done

It does what’s advertised but… ,however it’s wired nerfs/blocks the full potential of your amp going to your subwoofer .Even with the knob all the way turned up it doesn’t allow the full wattage from your amp to go to the subwoofer.I thought maybe something was acting up with my amp tried a couple of different configurations but no luck . As soon as I disconnected this product and just ran my rca cables straight from my head unit to my amp to how I had it before ,everything was fine again . It works at least and I would have gave it 4 stars if it looked a little more quality but I can’t complain when it was only 12 bucks .I just gotta get over it and order a brand specific one and spend the extra 20 bucks 🥲I probably shouldn’t cheap out on this stuff anyways because I want to avoid having something go wrong / fire since this has to do with electricity