I have this kind of MP3 player interface on both of my Crossfires. Its plug and play. The radio thinks it's a CD changer. The sound comes in very clear with no hiss or static. It does require having a navigation equipped radio.




For an older Ford Escape I use one of these FM transmitters which would work as well for the Crossfire, and would not require having a navigation radio. It has a small display and function controls.

https://www.ebay.com/itm/Wireless-In-Car-Bluetooth-FM-Transmitter-MP3-Radio-Adapter-Car-Kit-USB-Charger/264341330298?hash=item3d8bf8997a:gNQAAOSwWOFc7fz o