Hi, I have a NVX JAD900.5 car amp that I'm using in a 2.1 configuration in my Chevy truck. Left/Right Front and Single Subwoofer. For no apparent reason, the LR channels turn off while the subwoofer channel stays on. It has nothing to do with overheating (I don't think) because it will be off when I start the truck after it has been sitting for hours and then after several minutes the LR will come back on...and then off again, seemingly randomly. The subwoofer never shuts off. I believe that if it were an overheating issue, the entire amp would shut down, not just the L/R channels. I have used this amp with a different head unit with the same results, so it isn't the source. I have 2 options. Take the cover off and try to figure out what part(s) is/are failing or throw it in the landfill and buy a new amp. I'd like to try option 1 first. I'm pretty capable of doing repairs but need some guidance as to what to look for. I don't want to spend a lot of $ on this amp even though when it works, it sounds excellent. Any ideas? Thanks in advance.