- Locate the U8 Chip
- Cut trace of Pin 15 and Pin 16 as showed with the "yellow" line in the photo
- Connect the Pin 11 of the Floppy connector to U8's Pin 15 as shown in the photo
- Connect the Pin 9 of the Floppy connector to U8's Pin 16 as shown in the photo
Disclaimer: I haven't tried this mod to any of my Amigas so try this at your own risk. This mod has been discussed further on Amibay here.