Want this question answered?
6.5
6.5"
The speakers in a 2006 GMC Sierra 1500 crew cab are 6.5 inches. However, the speaker manufacturer will refer to this size as 6.75 or 6 3/4 inch speakers.
Front speakers Front Door: 6-3/4" factory speaker note Far rear speakers Rear Pillar: 4x6" factory speaker note
I believe that they are 5 1/4. Go to Crutchfield.com they will hook you up with all the sizes and specs.
The Sierra is a truck that is manufactured by General Motors Corporation. Currently there are three versions of the Sierra which include the regular cab, crew cab and hybrid crew cab.
crew cab door speakers are 6.5"
King Sun - 2015 King Sun Crew - 1.1 was released on: USA: 15 January 2015
King Sun - 2015 King Sun Crew 1-1 was released on: USA: 15 January 2015
he is from Sierra Leone
6.5"
See this document: http://www.jpcustoms.com/store/documents/signalmirrors.pdf This is actually a procedure to install some mirrors, but the process of removing the panel is shown. Jack