diff --git a/c64/kernal/tape/tape_common_autodetect.s b/c64/kernal/tape/tape_common_autodetect.s
index 85a08757..08bc5862 100644
--- a/c64/kernal/tape/tape_common_autodetect.s
+++ b/c64/kernal/tape/tape_common_autodetect.s
@@ -17,8 +17,7 @@
 tape_common_autodetect:
 
 	// Set screen color to something neutral, silence the audio
-
-	lda #$0C
+	lda #$0B
 	sta VIC_EXTCOL
 	lda #$00
 	sta SID_SIGVOL
diff --git a/c64/kernal/tape/tape_common_prepare_cia.s b/c64/kernal/tape/tape_common_prepare_cia.s
index fefffbba..0fda0555 100644
--- a/c64/kernal/tape/tape_common_prepare_cia.s
+++ b/c64/kernal/tape/tape_common_prepare_cia.s
@@ -58,19 +58,3 @@ tape_common_prepare_cia:
 	rts
 
 #endif
-
-
-xxx_measure:
-        clc
-        adc $C001
-        sta $C001
-        bcc !+
-        inc $C000
-    !:
-	      inc $C002
-	      beq !+
-	      rts
-    !:
-	      lda $C000
-	  .break         // .A contains our average
-        rts
diff --git a/c64/kernal/tape/tape_turbo_get_bit.s b/c64/kernal/tape/tape_turbo_get_bit.s
index e636772a..b3a2fb4c 100644
--- a/c64/kernal/tape/tape_turbo_get_bit.s
+++ b/c64/kernal/tape/tape_turbo_get_bit.s
@@ -31,29 +31,5 @@ tape_turbo_get_bit:
 
 #endif
 
-	cmp SYNO                           // threshold
-	bcs !+
-
-	clc
-	ror
-	sta IRQTMP+0                       // store half of the last measurement result for short pulse
-
-	lda #$01
-	sta SID_SIGVOL
-	lda #$06
-	sta VIC_EXTCOL
-	sec
-	rts
-!:
-	clc
-	ror
-	sta IRQTMP+1                       // store half of the last measurement result for long pulse
-
-	lda #$00
-	sta SID_SIGVOL
-	sta VIC_EXTCOL
-	clc
-	rts
-
 
 #endif // CONFIG_TAPE_TURBO