In the NEW Nintendo 3DS XL you could bridge two points to make the 3ds think a headphone jack was connected. Can anyone point out how I could archive something that on the GBA? Which points to solder?

Here is a link to the pic if the try pads you had to bridge on the N3DSXL
https://gbatemp.net/attachments/step-10b-png.41485/

Since 32 pin and 40 pin GBAs are different does anyone know what holes to use with the 32 pin board? I included a pic of the boards. Upper one of 40, lower one is 32.