Odd throttle issue

[jambo101]

I really doubt your stereo system is the cause of your problem.
I had a similar problem when i first bought my 08 sedan standard. every once in a while the engine would go to idle and stay there, several restarts would get it functioning normally again, fortunately it was under warranty so the dealer fixed it, said it was something to do with a defective sensor that controlled engine rpm or throttle position.