I would expect the connectors have some sort of release on them and then simply disconnect from the amp. I doubt the holes on the brackets are standard, and also doubt the connectors are standard.
Thanks for the images. I opened that panel looking for the amp and what I found doesn't look like this. The spot where your amp is located has a plain rectangular box on it with no bracket raising if off the plate. Also there is no writing of any kind on the box. It has heat sinks but they're not the same.
I'm wondering if I have a very early version of the amp or if something was substituted? I found another amp listed on an auction site and it matches yours.
Isn't it funny how the mind plays tricks? I decided to open the compartment and see if ventilation would "cure" the problem (it doesn't) and found that indeed the amp is the same. Sorry for the senior moment...
The problem I'm having is my stereo sound stops working for intermittent periods and I suspect a power amp problem - possibly a short or a heat-related problem. Given the difference in appearance between your amp and what I have, I am wondering if those brackets were added as a way to reduce heat problems, and mine is a prior version that didn't have the brackets...??? I guess when the replacement unit comes from the dealer, I will see...