Kenwood’s software is copyrighted intellectual property. Distributing or downloading cracked versions violates the Digital Millennium Copyright Act (DMCA) and similar laws worldwide. While Kenwood is unlikely to sue an individual hobbyist, your ISP may flag torrent activity, and commercial entities caught using pirated software face fines up to $150,000 per instance.
Consequently, users turn to the internet looking for a free version. Here is where the search usually leads: kenwood kpgd3 free