Sounds like about 5000 songs. If there is 1 song on the card that is wrong or something, it will lock most of the radio stuff.
2017 Grand Cherokee Limited Lux II Granite Metallic
2014 Jeep Grand Cherokee Limited Max Steel V6
2001 Jeep Grand Cherokee Laredo Black 4.0 I6
1997 Jeep Grand Cherokee Laredo Silver I6