Lariat ER. Stock B&O just flat out sucked! I had to do something. I am an AV snob, this system doesn’t leave me wanting for more. It rocks. Look into MTI Acoustics out of Texas or Sounds Good Stereo in Tennessee. They do a ton of systems for F series trucks. That’s were I started my research. Then I went with some equipment I had experience with. Furthermore, EV are actually awesome to do an upgraded audio system with. None of the issues with standard 12 v system. No alternator noise, or worrying about power reserves. The DC to DC converters in EV are strong and efficient. Plenty of power transfer. Just make sure you power on your car before listening, otherwise that little 12 volt battery will die 😳😂