I want add skin to my stereo. Problem is that radio automatic delete data.zip allways when i start radio to servis mode. After restart stereo to normal mode  it doesn't start  new skin but not allways. Basicly stereo automatic repaire missing files or change some files. When i did change sys.txt file it doesn't accept it.  Please sugestion how to do it.

Is it possible crack IGO to accept maps and licence in my stereo navi?