I have a 1994 GMC Sierra 1500 extended cab and I need to change all the speakers

[JonlErikA]

out. By googling I found the?
I have a 1994 GMC Sierra 1500 extended cab and I need to change all the speakers out. By googling I found the two in the dash should be 4x6, but I don't know the size of the one's in the back columns, nor how to get to them to change them. Any help would be appreciated. Thanks.

 

[Ibanez31425]

Dash: 4x6"
Front Door: 6-1/2" Your factory speaker doesn’t match any aftermarket speaker size exactly. Here, we list the largest speaker that will fit in the factory location. As you shop, we’ll show you all options for this location.
Far Rear speakers

Rear Pillar: 4x6"

 

[decibaldude]

try to google and youtube it i bet its shown on youtube..