Question on hacked phatbox

[Pson]

I looked at old threads I had saved, but none seem to work.  It has been a few years from when I hacked my Phatbox and forget an important answer.  Will a hacked phatbox with the org. DMS HDD work in an OEM headunit..if I flashed it to work with a kenwood headunit? 

[sbingner]

.... You would need to flash it back to whatever the OEM headunit's protocol is

[Pson]

It has been a few years from the last time I did the mod.  Will,  I just need to reflash the firmware on the DMS...what if I don't have a car to connect anymore?