How to fit remote lock Fabia 1.4 TDI 2008

Hello friends,

I am Jai from India. have a custom shop of my own. i have a issues to be solved.

1) I have a Skoda Fabia Classic 1.4 TDI 2008 model, right hand drive. The car comes with a default 4 door key lock, 4 door power window but dose not have a remote. I recently purchased a remote lock device suitable for Skodia Fabia along with a pair of new remote and blank key blades, and the I have gone through the manual and wiring diagram of the device. But my problem is from where can I find the suitable lines to connect sockets of the four door lock and power windows and boot. I have done some similar work with other Japanese and Indian cars. Need advice?

Thx

Jai