1998 Acura CL ... I just started getting this buzzing type vibrating sound in my motor compartment when the car is off. it has that vibrating cell phone sound like when your phone's on vibrate it sounds like that. The buzzing doesn't come on right when you turn the car off but if you wait a minute or two it'll vibrate like in the dashboard area where the back of the motor of the car but then it'll stop but incin 2 min give or take a minute it has a vibration just like a phone that's vibrating when it has a message let me know about this issue please advise thanks

 

iam willing to bet its a relay going or already gone