You must use a computer in order to get the files. If you are using a mobile device you won't be able to access the link.
Kenwood SD Images
Standard Definition boot screen images for Kenwood receivers with WVGA displays. Compatible with most DNX 8 and 7 series, DDX 9 series, and DMX 9, 8 and 7 series.
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Link:
Step 1.
Subscribe to Unlock
Subscribe to iSimplifiedTech YouTube channel to unlock the link with the files. If you already did click subscribe again and return to this page.
Step 2
Download the Files
A new page will open in Google Drive. In order to download the files click on the top right corner download arrow button.
Step 3
Set the Bootscreen
Copy the two files for the specific vehicle on the USB flash drive and follow the instruction shown in the video.