so i fired up the unit again this morning and it worked fine again???? weird... anyways thx for the help...
Now this is getting really strange. I am a firm believer that even with electronics, there must be a reason for an intermittent problem.
I have an AVIC Z2 that I had professionally installed about 2 and a half years ago. It has the bypass, everything about the bypass was working fine. It had some minor glitches (sometimes would not accept a CD, had to pull over and turn engine on and off before it accepted it), but 3 days ago it wouldn't boot up, just showed me "Cannot use HDD".
I tried as many resets as it would let me do without actually working, then decided my HDD was toast, and maybe that is the weak link of the AVIC Z2. I was looking for replacement units.
Then today - THREE DAYS LATER - I started my 4Runner and it booted up just fine, even had all the stored memory in the Music Library.
I live in California, and it was between 60 and 65 degrees when it happened, and when it started working again.
There has to be a logical explaination. I didn't use anything any differently when it went bad from the way I have been using it for the past 2 and a half years.