Review on 46KISLOAD4 Smart Radio Interface Aftermarket Full Range by Gregory Castellanos

Extremely happy. I hooked up a 4 channel amp to my factory head unit in a classic 2019 Ram. Everything was hooked up correctly since I installed them at my old work station 15 years ago and turned everything on one day. silently. I couldn't figure out what was wrong and after an hour or so I started reading online and found that most new head units require a pull up resistor. It was pretty much a plug and play device without having to worry about what resistor you need. It does this for you automatically. Highly recommended and easy installation. I will buy more for my other car.