I purchased two Pyle tuners, the first one was installed and everything worked for 4 days and the tuner stopped working. The screen viewed brilliant colors, unfortunately, it was not working. The tuner wasn't scrambled with poor reception, it wasn't working, a still red yellow screen. I pulled it out and order a replacement Pyle and this one worked fine until 3 weeks later. This Pyle tuner did the same thing. I sent the second one back and gave up.