<SammichLover>, glad you learned how to read. Too bad you don't know how to search, or think one step ahead.
Tesla doesn't support AptX.
From
Undocumented | TeslaTap
Bluetooth – 3.0 + HS; Audio streaming with A2DP sink, A2DP source, AVRCP 1.4; Audio Profile A2DP includes support for standard SBC codec (highly compressed low-bit rate audio); Uses the
Parrot FC6050 W chip.
Therefore, playing stored MP3 music files, or Spotify/Pandora over Bluetooth, is just asking for bad sounding compressed audio given these specs.
a
P.S.:
Also:
Why doesn't Tesla's Bluetooth support AptX?