diff --git a/Marlin/src/lcd/HD44780/marlinui_HD44780.cpp b/Marlin/src/lcd/HD44780/marlinui_HD44780.cpp
index a0cf5fe46bda..b03ff8a9f533 100644
--- a/Marlin/src/lcd/HD44780/marlinui_HD44780.cpp
+++ b/Marlin/src/lcd/HD44780/marlinui_HD44780.cpp
@@ -103,7 +103,23 @@
 
 #elif ENABLED(YHCB2004)
 
-  LCD_CLASS lcd(YHCB2004_CLK, 20, 4, YHCB2004_MOSI, YHCB2004_MISO); // CLK, cols, rows, MOSI, MISO
+  #ifndef YHCB2004_SS_PIN
+    #define YHCB2004_SS_PIN   SS
+  #endif
+  #ifndef YHCB2004_SCK_PIN
+    #define YHCB2004_SCK_PIN  SCK
+  #endif
+  #ifndef YHCB2004_MOSI_PIN
+    #define YHCB2004_MOSI_PIN MOSI
+  #endif
+  #ifndef YHCB2004_MISO_PIN
+    #define YHCB2004_MISO_PIN MISO
+  #endif
+  #if !PINS_EXIST(YHCB2004_SS, YHCB2004_SCK, YHCB2004_MOSI, YHCB2004_MISO)
+    #error "YHCB2004 display requires YHCB2004_SS_PIN, YHCB2004_SCK_PIN, YHCB2004_MOSI_PIN, and YHCB2004_MISO_PIN."
+  #endif
+
+  LCD_CLASS lcd(YHCB2004_SS_PIN, 20, 4, YHCB2004_SCK_PIN, YHCB2004_MOSI_PIN, YHCB2004_MISO_PIN); // SS, cols, rows, SCK, MOSI, MISO
 
 #else
 
diff --git a/Marlin/src/pins/mega/pins_GT2560_V3.h b/Marlin/src/pins/mega/pins_GT2560_V3.h
index 61f30fc7d4f4..0c588e6516ee 100644
--- a/Marlin/src/pins/mega/pins_GT2560_V3.h
+++ b/Marlin/src/pins/mega/pins_GT2560_V3.h
@@ -168,18 +168,10 @@
 #define BEEPER_PIN                            18
 
 #if ENABLED(YHCB2004)
-  #ifndef YHCB2004_CLK
-    #define YHCB2004_CLK                       5
-    #define DIO52                   YHCB2004_CLK
-  #endif
-  #ifndef YHCB2004_MOSI
-    #define YHCB2004_MOSI                     21
-    #define DIO50                  YHCB2004_MOSI
-  #endif
-  #ifndef YHCB2004_MISO
-    #define YHCB2004_MISO                     36
-    #define DIO51                  YHCB2004_MISO
-  #endif
+  #define YHCB2004_MOSI_PIN                   21
+  #define YHCB2004_MISO_PIN                   36
+  #define YHCB2004_SCK_PIN                     5
+  #define YHCB2004_SS_PIN                     SS
 #elif HAS_WIRED_LCD
   #ifndef LCD_PINS_RS
     #define LCD_PINS_RS                       20
diff --git a/Marlin/src/pins/mega/pins_GT2560_V3_A20.h b/Marlin/src/pins/mega/pins_GT2560_V3_A20.h
index 772a45a9186a..2422dfdd73e5 100644
--- a/Marlin/src/pins/mega/pins_GT2560_V3_A20.h
+++ b/Marlin/src/pins/mega/pins_GT2560_V3_A20.h
@@ -26,12 +26,16 @@
  * ATmega2560
  */
 
-#define LCD_PINS_RS                            5
-#define LCD_PINS_EN                           36
-#define LCD_PINS_D4                           21
-#define LCD_PINS_D7                            6
+#if HAS_WIRED_LCD
+  #define LCD_PINS_RS                          5
+  #define LCD_PINS_EN                         36
+  #define LCD_PINS_D4                         21
+  #define LCD_PINS_D7                          6
+#endif
 
-#define SPEAKER                                   // The speaker can produce tones
+#ifndef SPEAKER
+  #define SPEAKER                                 // The speaker can produce tones
+#endif
 
 #if IS_NEWPANEL
   #define BTN_EN1                             16
diff --git a/Marlin/src/pins/mega/pins_GT2560_V4_A20.h b/Marlin/src/pins/mega/pins_GT2560_V4_A20.h
index 3b3a80caa83f..405a3aba5bf8 100644
--- a/Marlin/src/pins/mega/pins_GT2560_V4_A20.h
+++ b/Marlin/src/pins/mega/pins_GT2560_V4_A20.h
@@ -28,12 +28,16 @@
 
 #define BOARD_INFO_NAME "GT2560 4.x"
 
-#define LCD_PINS_RS                            5
-#define LCD_PINS_EN                           36
-#define LCD_PINS_D4                           21
-#define LCD_PINS_D7                            6
+#if HAS_WIRED_LCD
+  #define LCD_PINS_RS                          5
+  #define LCD_PINS_EN                         36
+  #define LCD_PINS_D4                         21
+  #define LCD_PINS_D7                          6
+#endif
 
-#define SPEAKER                                   // The speaker can produce tones
+#ifndef SPEAKER
+  #define SPEAKER                                 // The speaker can produce tones
+#endif
 
 #if IS_NEWPANEL
   #define BTN_EN1                             16
diff --git a/Marlin/src/pins/pins.h b/Marlin/src/pins/pins.h
index 511870053324..6ee6401badfc 100644
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@@ -795,7 +795,7 @@
 #elif MB(BLACKPILL_CUSTOM)
   #include "stm32f4/pins_BLACKPILL_CUSTOM.h"    // STM32F4                                env:STM32F401CD_blackpill_stlink
 #elif MB(I3DBEEZ9_V1)
-  #include "stm32f4/pins_I3DBEEZ9.h"            // STM32F4                                env:I3DBEEZ9_V1 
+  #include "stm32f4/pins_I3DBEEZ9.h"            // STM32F4                                env:I3DBEEZ9_V1
 
 //
 // ARM Cortex M7
diff --git a/Marlin/src/pins/stm32f4/pins_BLACKPILL_CUSTOM.h b/Marlin/src/pins/stm32f4/pins_BLACKPILL_CUSTOM.h
index 9049a553fb49..039333adfa91 100644
--- a/Marlin/src/pins/stm32f4/pins_BLACKPILL_CUSTOM.h
+++ b/Marlin/src/pins/stm32f4/pins_BLACKPILL_CUSTOM.h
@@ -117,7 +117,7 @@
 //#define SDIO_SUPPORT
 #define NO_SD_HOST_DRIVE                          // This board's SD is only seen by the printer
 
-#if SD_CONNECTION_IS(ONBOARD)                      
+#if SD_CONNECTION_IS(ONBOARD)
   #define SDSS                              PA4
   #define SD_SCK_PIN                        PA5
   #define SD_MISO_PIN                       PA6