I have a 2004 Acura DMX all stock parts. A few days ago my car wouldn't start so I got it jumped and it started right up but now if I leave it overnight and go to start it in the morning it won't start. Also the navigation system and radio flash lights before I even put the key in I'm assuming this is draining the battery but why? Now my green key flashing light popped up. Can someone please help me? One before when my husband was working on the tire he said the radio turned on and the vehicle was not on. I don't know how to fix this or why it is doing this. Please help.

 

Yup, you have a battery drain. You'll have to perform a parasitic drain test to figure out what exactly is draining that battery and unplug or replace that part.