First I use and aluminium sheet cut it down to fit the mounting area. Then II a right angle welded to the bottom of it. This right angle will be used to screw it to the tranny tunnel. I added industrial grade Velcro to it.




I then installed Velcro to the back side of the ECU.



The mounting plate was then secured in place by three metal screws on the top that screwed into the transversal steel beam. The bottom part of the mounting plate is secured by two metal screws through the tranny tunnel.




Head on view of the mounting plate and ECU in place. Of course you won't really see this when the new centre console is installed.