forgot about that

src/ascii_cmd.c

@@ -208,8 +208,22 @@ static void handle_eccen(unsigned char *arg) {
 }
 
 static void handle_grpseq(unsigned char *arg) {
+    unsigned char grps[24];
+    int count = 0;
     
+    while (*arg && count < 24) {
+        unsigned int value;
+        if (sscanf((char *)arg, "%1X", &value) == 1) {
+            grps[count++] = (unsigned char)value;
+            arg++; // Move to the next character
+        } else {
+            break; // Stop if input is invalid
+        }
+    }
+    
+    set_rds_grpseq(grps);
 }
+
 // Command tables organized by delimiter position and command length
 static const command_handler_t commands_eq3[] = {
     {"PS", handle_ps, 2},