that i cannot listen to the radio with the engine off because all the on board computers might drain the battery. i don’t know what those computers are doing when my engine is turned off but i was told they will drain the truck battery. i remember my old chevy pickup i could leave the radio on all day while working on my wood pile and have the radio blasting.
electronic machines are stupid and they are best left to single task. every try to open up more than a few “windows” on your computer? that’s when things begin to slow down or shut down. keep it simple stupid, kiss technology, 