Audio Systems: One speaker goes dead, market radio, arm rest

Question
I have a 1998 chevrolet half ton pickup.  The passenger side speaker has been acting stange.  The sound used to pop off then on.  Then it would only come on after the truck had been running for a bit, now it seems that it will not give any sound at all.  All other speakers work fine.  Had an after market radio proffesionally installed and the tech told me that his wiring was correct, and it was working fine( the speaker that is) for some time.  But the last 2 weeks, no sound.  How do I take off the door panel to inspect the wiring  to that speaker.  The panel seems to be very securely fastened.  I am dying here.  I love my truck and want it working 100%.  Any help would be awesome.

Thank you.

David

P.S. If this is not the right forum could you pass this e-mail to the right one so I can get help?  Thanks again.

Answer
remove all the screws that you can see there is two that go from under the pannel holding the arm rest and one more where the handle is after you take them all out the door is just hold by big plastic clips pull hard the door is not going to get damage

http://www.installdr.com/