OK, now we're getting somewhere.
So depending on the 'transport' - and by that I mean the playback hardware - you'll need to know what they support.
Dashboard decks are a strange beast depending on the vintage, so let's start with the Oppo first.
The Oppo will play a pretty much most file audio file formats AND a bunch of video ones too ... but I digress.
So at the end of the day, it comes down to the medium you want to host the wave files on.
Your Oppo is an older one, so I won't rule out some goofy thing going on ... but in a nutshell it supports ALL these disc formats:
DVD-Video, DVD-Audio, SACD, CD, HDCD, Kodak Picture CD CD-R/RW, DVD±R/RW, DVD±R DL
With Nero, as one example, you can burn CDs, CD-Rs and DVD-R's as data discs. So think of a data disc as no different than a USB thumb drive or a hard drive.
It's just a partition that has files on it. You simply need to use Windows or Nero or whatever to get wave files on an optical disc so that both Jani's truck deck and your Oppo can play them. Nero lets you drag & drop files onto the target blank disc in your burner. Some versions of Nero will let you drag, convert and burn.
But to keep it simple, go get Audacity and install it on your machine. It's free. Then convert a handful of FLAC files to wave. All you have to do next is to the pop a blank CD into your Win 7 machine and make a data disc ... and then try that disc both in the truck and in the Oppo. Assuming your computer isn't jacked up, as soon as you pop a blank CD into the burner, Windows will let you copy files to it like it's just another file space...
Does the head in Jani's truck have a faceplate or dash located USB port? The Oppo has a USB 2.0 port.
What I'm getting at here is to take smaller steps to go through a process of elimination.
Use Audacity to convert some FLACs to wave. Then format a USB thumb drive to FAT32 and copy those few wave file songs to it, and try it on both playback devices.
