Hello all. Preparing to remove the drivetrain from my 348 spider. Have completed all the disconnect/ removal tasks with the exception of the ECU connections. Looking for advice. I have removed the interior panel covering the ECU boxes. Appear the connectors are large pin type that have a clamp to release then disconnect. Correct? The mouse motors appear close. Problem/ Interference? After disconnecting the ECUs, feed through the firewall? I am not clear on this task. Detailed advice is welcome. I admit to being a bit paranoid regarding all the electrical connections. Do not want to drop the drivetrain without disconnecting everything correctly. Thanks for the help.