2010 Tacoma XM JBL radio after 10 min quits?

Guys,
My warranty has ran out .
This just started, I have 24K miles on this awesome truck.
The stereo after 10 min the sound starts to fade and crackle.
Then the sounds goes low and then completely out.
The next morning ( just like a woman) its works fine, like nothing ever happened...
Then later that day it goes out again, do you think its the internal amp getting hot etc.
Thanks in advance.
Billy ( single) Only need one problem at a time lol.

PS: I wonder if there is a separate amp,could it be a amp problem.
I hate to order another deck and that's not the problem

++++ UPDATE++++
I just got the truck looked at this morning 8-7-13- They stated the problem is the JBL amp.
I called Toyota to see the amp could be covered by them since my warranty ran out Jan 2013.
I will get an update by friday.
Oh my dealership stated when i dropped off the truck NO there would not be any coverage for the stereo and after
they checked it out then they would cover half which is still a bill of $280.00.
This is why I made the call to Toyota, I figure my truck has 24K miles and I expect my STEREO TO STILL WORK!