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Has anyone had to flash the GTS radio to get better sound after adding an amp and line levelers? I have a 2019 SGS and adding the BT4180 amp. BT is suggesting to get it flashed to Stock Ultra from my current EQ version, 01_OFF.bin. What is the Stock Ultra EQ version? Screen shots show the menu and when I hit 00.OFF.bin info I get the current version 01_OFF.bin.