Does Kenwood have some kind of training program or videos that teach the salient points to their dealer installers? If not, they should as that is money well spent to have customers praise their junk instead of cussing it because the techs didn't set it up properly.
Kenwood does, but getting individual shops to actually send their techs to it is a different thing. I'm not a dealer, but I'm a big enough customer that myself and one of my guys went to Kenwood training on the NexEdge systems. The protocol and equipment are all documented very well in specific "In-depth" manuals that are freely available to authorized Kenwood shops. These manuals cover all the functions and settings quite well. Again, issue is getting time to read all this stuff.
Although having set up complex systems myself, the customer bureaucracy can often prevent the tech from completing the project properly. THEN they still turn around and blame the technology or the company anyway.
This is true.
I work for a state agency, we invented bureaucracy. I do go to great pains to make sure the bureaucratic BS doesn't splatter on my vendors. I'm much more interested in keeping my vendors happy than I am in keeping the director happy. Believe it or not, it actually works out much better that way. Director might be unhappy in the short term, but in the end if my customers are happy, he's happy.
I also make sure none of my "customers" ever deal directly with the shop. All contact has to go through me, that way I can weed out the nonsense. We do some of our own work, all our own programming and will triage all radio issues before it ever gets to anyone outside the organization. Further efforts to keep the BS splatter to an absolute minimum.