2008 seirra electrical problems

[Frenchman13]

please anyone know where the short on my 2008 seirra radio is.morning time or when it is cool the radio dash speakers are only thing that work. in the afternoon when i get in everything is back too normal.meaning door speakers now work.
please help

 

[GMC Customer Service]

Frenchman, I'm sorry to hear about the issues you're having with your vehicle. Have you had the vehicle checked with a dealer or are you looking to handle this yourself?

Jeff Morris, GMC Customer Service

 

[Frenchman13]

yes,this truck has been nothing but a headache.First they found short in wiring about 6 months after i bout it .the dash lights would go off at night/on during day.after warranty ran out happen again.this time they didn't want to help.call gm 800 # because i thought it was a safety issue.after about a week i get a call now they wanted to help.go figure.now a year and half later this...thank u for responding though..