Central locking

[pticajs]

Hello.
Does anyone know where can I find signal cables for central locking.  Citroen Berlingo LS67LRZ
My next projects are 
Change alarm for CAN one (ampio) .activated from central locking sygnal
Keyless entry  (active beteen certain hours) on bluetooth need central locking signal
foldable mirrors -automatic fold after car locking  (need central locking signal) 
TPMS in my cupboard for over a year
AirCon (peltier modules) just for forehead

Electronic project already done
replaced radio to 2DIN 2MbRAM android (GPS, rev camera, etc)  (2 years ago £240) + 3D printed frame
added DAB+ (last year £25)
3x USB charging points (2y £5)
1x USB ch.p. with battery display voltage (2y £5)
10 times / 10 positions for wipers (1y £2)
revers sensors with distance display (integrated) (3y £5)
extra strong light above head with extra switch (2y £1)
extra strong light for back loading space (used existing light switch) (2y £1)
cruise control (this year £8) speed limiter doesnt work (need new accelerator- I wont bother) need to use Lexia
speed camera sound warning system working on background from SatNav (could be very loud if keep speeding) with timer silencer. Came free with new bought van.
foldable , heated mirrors (this year£150). operated with switch manually or open automatically after engine on (above 13.5V)
House fragrance spray (2y £5) set up with 12v clock (£5)
dusk lights/ fog strip LED (2y £3) improoved this year (switch pos1 - constans ON (engine running) , pos2 - auto ON, pos3 OFF)
Lexia £35
LOADS of cables,cables,cables
I hope I didnt miss anything

All parts mainly bought on known sale portals  (all cheap models)
Im builder but also do electronic projects.
Timers made from NE555 chips but they can be bought cheap.

Im happy to help with any project I did or going to do.
Please be patient for any answers as I work long hours and dont come to this site very often.

Jacek