How to add a Source or a particular source.
step 1. Open cydia on your idevice.
step 2. tap on "MANAGE " tab
step 3. now tap on "SOURCES"
step 4. now tap on "EDIT" ( on top left of the screen )
step 5. now tap on "ADD" (on the top right of the screen)
step 6. now enter the source as u can see in the image below
" http://repo.siriport.ru " and tap on "Add Source "
now it will verify the source and start updating your source and you are done...
now to install siri right on your idevice goto search tab ans tye "siriport"
Now where it is written "modify" you will get "INSTALL" tap on install
and rest of the process take place on your device..
NOTE : DOWNLOAD IS ABOUT 250 MB SO I SUGGEST TO USE WIFI..