Have a 2007 chevy silverado classic w/t ex cab, the front speakers and door chime works and does not work any ideas?

 

Are you saying they sometimes work and sometimes do not work?

If so, I'd say there is a problem with your connections behind your stereo.
Did you recently get an aftermarket CD player of whtever installed?
I would take the deck out and inspect all the connections before anything else.

 

no it the same factory stereo, but ill give that a shot first.

 

Thanks for the info, turns out it was the left door speaker, took both door panels off swaped speakers and the left on was not working. thanks for the info.