You will have to remove all trim that surrounds the speaker enclosure. Then remove the panel that houses the speaker. The speaker is removed from the rear side of this panel.
According to crutchfield.com my 1995 Chevy c/k 1500 extended cab pickup has 4"x6" speakers in the rear pillar but you can fit a 4" with a bracket of course
4x6
Remove the door panels
I have a 1996 Chevy extended cab cheyenne pickup. i need to know how to install a door handle on the passenger side.
most usually there was a dealer kit that replaces the factory rear side storage box doors to install rear speakers , although only in xtra-cab pickups.
4 by 6 in the rear and 6 1/2 up front
The 2001 GMC Sierra 1500 dashboard speakers measure 4.5 inches in diameter. The front door speakers measure four inches by six inches. The rear speakers measure five inches by seven inches.
4X6 speakers
how to install a blower motor for a 1994 Toyota pickup
how to install a blower motor for a 1994 Toyota pickup
4 ohms
About $1,200