So i just got an is 300 and the head unit is a lil missed up and im trying to see if anybody can help me.
The problem is just a lil touch to the power button shuts off the head unit. i cant adjust volume at all with out it turning off. is there a solution to this?

 

Sounds like the unit itself is bad, really.

 

Time for a new unit. There's one for sale in the classifieds right now for a decent price.