That is google for you... Try www.duckduckgo.com for a search engine that DOES NOT TRACK YOU - like google does. Type "brake controller". The modes do not seem to matter.
What clock are you referring to? The radio clock or the Dashboard clock - if you have one. Go to your User Name at the top right of this screen and add your Signature information. The year and model of your truck. etc. This will help all of us to know what you are referring to.
Wiring for the inverter is here: https://manuals.plus/dewalt/dxaepi1000-1000w-power-inverter-car-converter-manual#axzz84GB0LPDk
As for a 140 amp alternator it is available with an Ambulance package. It uses dual 140 amp alternators. I have no knowlege of this package and wiring.
Welcome to SDD! There are not a lot of members here on any day. Our sister site, www.oliburners.net, might have more help. Also fill out your signature with your truck information by going to your User Name in the top BLACK line and selecting "Signature". This will help us help you.