What you do is is take your 470 ohm, and add a 3.3 k in series. Then solder a small switch across the 3.3 k so you can short it out, and lo and behold you can switch maps at ease.
What you do is is take your 470 ohm, and add a 3.3 k in series. Then solder a small switch across the 3.3 k so you can short it out, and lo and behold you can switch maps at ease.