I bought the same Spal kit but have not installed it. I also bought a shaved door kit at the same time. It has a interface module so I can operate the windows up or down from my remote and open the doors. I plan on installing the interior switches on the console where my choke and seat belt lights are. I just looked at the receipt and I got them from A1 Electric. I paid $140 for the Window Kit, $150 for the shaved door kit, and $70 for the "One touch automatice Window module". The Door kit came with relays to trigger the window "one touch".
I have a S30, Janaka you said you upgraded to FG door panels. ??? What do you mean by FG?