I would like to display on my site a submissions list from Form2 with lookup values from Form1

I have two forms:
Form1: contains members, with fields for name, address, phone etc. I'm using RSforms plugin to create user based on this form. And records also saved in RSforms table
Form2: contains cars, with fields for model, year, color etc. Each member (registered in Form1) will register his own cars (not at the same time - might be months after registering as member/user). These records also saved as RSforms table.

In a "Submissions view" of Form2, I would like to show owners name and phone (from Form1). By now I have temporarily solved the name by using global:fullname, but as I need the phone number, I need to fetch the wanted values from Form1 table

I'm sure this can be done, but I'm not a coder, so I would be glad if anyone could put me in the right direction. Example code, and where to put it?