The audio amplifier located in the frunk has a 12V line continuous power and another power line that is turned on from the ignition switch. I do not know how this line receives power since there is only one fuse (7.5A) and no other for the amplifier.. Is the 10A fuse on the front radio power the amp?

 

There should be a brown or blue wire from your stereo to the amp that provides the power when the ignition is turned on.