I purchased this to put into an old beater truck to replace the thrashed original radio (94' Ford F150). I really didn't want a typical new radio with tons of lights and buttons and difficult to use. In researching, I found this unit, which appears to be more of the 90's era, which I felt would fit the look of this older truck. To my surprise, this radio fit into the existing Ford F150 (1994) radio slot without any issues. Do some research on swapping the yellow and red wires, as others have mentioned. I followed what others have done and the radio works great. Sound is much better than expected even with 30 year old stock speakers. You need to remove the "adapter" that comes in the radio antenna slot in the back and slide in your normal antenna connection. Radio stations come in clear and I'm getting way more stations than before. Other reviewers mention you can't adjust bass, treble, fade, balance... But YOU CAN! It's just not explained in the manual that comes with the unit. I googled and found an online manual that explains how to do it. See my photos. You can also use one of the preset "sound effects", Pop, jazz, etc... instead of adjusting manually. Bluetooth works great. Also, at least for our truck, there is no need to install the wired microphone. There is a built in microphone in the radio that works well. I've made numerous calls and everyone says I come in loud and clear. I found this a great plus. All in all, I'm very pleased with this radio, and it looks so much better than other aftermarket current radios.