New order Leon 5F – Navi or Navi+?

Hello! I will probably buy a Seat Leon 5F soon (FL/new order) and am still a bit unsure about the equipment. Currently the configuration looks like this: – FR 1.4 TSI with 125hp – Nevada White – ACC – roof sky black – 18″ Performance rims – Media Package (consisting of: navigation system “normal” incl. mapcare, rear camera, SEAT Sound System, SEAT Full Link, spare wheel) – Multifunction camera PLUS (tracking assistant, driving light assistant, traffic signer – Austria package for FR (full LED headlights, parking aid front + rear, electronics package) – normal fabric seats – winter package With the current Navi (standard) there is apparently a problem with the SD cards. Does the Navi+ also have any difficulties in this regard? The data should be stored there on the hard drive… What is the audio technical situation? I would like to have the Seat Soundsystem or possibly the upcoming Beats Audio System installed. . Apparently the Navi+ has a better amplifier in connection with the Beats audio system. Does anyone have more info about it? How do you find the DCC? Is it worth an extra charge of 840€? lg and many thanks