My truck's speaker system is broken, HELP!!!

DarklingGolem50

Commendable
May 19, 2017
66
0
1,630
Right front, and Rear left are not producing any sounds, Mostly I can't access and replace them because I don't know how to remove the covers of the speakers

Isuzu D'max 2011 (LS, 4x2, Diesel, Auto Transmission)
 

DarklingGolem50

Commendable
May 19, 2017
66
0
1,630


I googled the Model of my truck but it's either 2009 or 2018 since mine is 2011 and it came out only in Thailand and Philippines...

A.K.A No results