fuse 29 blowing

[H-M3]

hi guys as per title the number 29 fuse which is 1am keeps blowing. i have changed it few times but same. i read about the armrest light causing this in most cases? i stripped the arm rest area and found that there is one wiring for left armrest and one blank connector. Can anyone shed light on this as I could not take the connector off!! is there a way of doing this to prevent blown fuse again?

kind regards