I live in Michigan, Ypsilanti. We are int he process of installing the second meter and nema 14-50 plug our self. Well the purpose of doing this ourselves (me and my cousin) is that he likes to do these kind of projects and he insisted that we give it a try. Any ways I went to the township for a permit and got a permit. I called DTE and they emailed me instructions, I copied some instruction at the bottom for wire specification where we are a little confused. Questions at the bottom. Below are pictures with some text explaining what i have done so far. outside: In the above image you see a separate meter 125amp installed with seu 2-2-2 connected to the top and SER 2-2-2-4 connected to the bottom. I went to lowes first and bought this cable they did not have 2-2-2. I asked if it was okay for me to use this the lowes associate said yes just dont use one of the wires, so we clipped the ground. white,red and black are connected. we ran out of cable so went to homedepot to get the 2-2-2 which will be connected to the main meter The main meter is locked so no connection is made to the main meter. The document provided by DTE said to connect to the load side and leave enough cable so that DTE can then move it to main line. outside inside garage: The cable on top is the old cable coming directly from the main panel, so lets ignore that. The bottom cable is coming from ev meter to 100amp panel. The reason for 100 amp is so that i can add another breaker when i get model 3. The cable coming from meter to panel is less than 10ft. Questions What did i do wrong above that will fail inspection? Now that we have done so much i would like to do all the fixes as well instead of getting an electrician to look it over and fix and do the remaining tasks. Do i need to ground the ev electrical panel? I did not right now as i thought that the panel is connected to ev meter which will connected to main meter which has a ground connected to it. I i do need to ground it can i just take the ground from the main panel? For inspection do i need to connect the to meters together and install a jumper in ev meter so that the inspector can test the connection? or will the inspector have jumper bypass with him? In Michigan home owners are allowed to pull the meter out so i have already requested DTE to remove the lock.