I can't find anywhere info about types of pins in socket named : I/P-C (Floor).
Because I would like to add one pin (4) but I don't know what type of female pin is that one.
Please help me in this case...
Sorry, I don't know what type of pin you need, but what I would do is just remove a little insulation from the end of a suitable wire and insert it into the terminal 4 cavity on the connector. Then use a thin zip tie to secure the new wire to one of the other adjacent wires already on the connector. I've been doing that for years when installing phone kits and other accessories to cars and never had any issues.
If I helped you fix it, why not... Your support is greatly appreciated
Thanks for your help. It is good idea. Of course I preffere to use pin because this pin is not connected in Junction box ( I would like to use cigarette lighter REAR POWER OUTLET socket because as I checked it it phisically connected in junction box and this connection in my opininio looks professional