Audio Systems: Car stereo has no power at all, infiniti j30, fuse box

Question
Hi Mark,

I have audio problem with my Infiniti J30, that doesn't work at all suddenly 2 month ago, I mean, no power at all with the whole audio system. Several weeks ago, I checked the fuses box under the driving wheel, the fuse box under the hood, and even tried to pull the head unit out to take a further look at inside but gave up because it's really tough to pull the trim out while I don't want to break it. Luckily, when I turned on the key, the audio was back to work. It's a huge surprise. Despite I don't know how, I was glad to have the music back to life. But the next morning when I turned the key on, the audio was back to silence again, forever.

I checked the fuses again, but to no avail. There is no sound at all. I'll check all of the fuses again to make the final try. Or should I pull the trim out to check the head unit? how? I don't think the head unit is broken.

If there is nothing wrong with the fuses, what other reason could lead to the audio power off? Is it the key ignition, or simply the wire problem? How to check them? Your detailed instructions with these respects will be greatly appreciated.

Michael

Answer
try jiggling the key or holding the key in certain positions like pushing up on the key and holding it there, or down, or turning it back and forth in tiny movements quickly (not from one position to another, but wiggling it in the current position)
I believe the J30 has a separate switch in the ignition just for the radio and nothing else and these go bad.  you probably have the bose system which are also prone to failure.  you may have a heck of a repair job here depending on the problem unfortunately.  if its just the ignition thing there's some tricks we can do to get around that.
let me know what you find and we'll work from there.
Good luck!