Transom unit powers up when I power on the MC40. I can shut both off independently. No image on the MC40 screen.  I’ll look closer at the black box. Thx

Exact same thing happened to me including the $15.10 and $103.  In my case it's a 2020 Axis A22 with m5di.  I'm looking at my purchase docs and can't find where I got the 345hp versus 360hp.  I asked Chat GBT to dig into it and the response said many dealer listings incorrectly ID the 5.3L engine as 345 or 350hp.  Progressive rep stated that part of their coverage is based on total HP so policy was adjusted to the higher HP.

8 minutes ago, lewistonskier said:

while, I feel a little dumb on that one. went out to see how the bracket was attached to see how hard it would be to replace, and turns out once I knew what to look for, the clip was there and I just had to flip it into place. I wish every boat fix was that easy.

If you're like me, that will be a minor issue on the list of "well duh" boat issues you encounter over the years of boat ownership!   

while, I feel a little dumb on that one. went out to see how the bracket was attached to see how hard it would be to replace, and turns out once I knew what to look for, the clip was there and I just had to flip it into place. I wish every boat fix was that easy.

12 minutes ago, lewistonskier said:

thank you so much, that is exactly what I needed to know, and see. I assume when the engine was pulled, it had to be removed, and it didn't get out back on. if anyone know where/how I could get a replacement, I would appreciate finding out.

https://www.ebay.com/itm/406143259928

You can find them cheaper on other sites.  Google Teleflex Morse 36174 clip