I think the key should still go in, even if the lock has been changed, unless it is from a different series car. Is the car's electrical system still hooked up and functioning? I think you should have an electronic release on the drivers door. I am out of town until Thursday and I can't verify on my car. I don't believe there is any release cable. I could check my Bentley manual tonight if you want me to.
2005 GMC Sierra 1500
2002 VW TDI Golf- 251K miles- 56mpg- 135 hp/245 ft-lbs, VNT-17, PP520 nozzles, RC3+ tune (which sucks, looking for better tune).
2001 BMW R1100RT
1967 P400- Restoration to start in spring
1919 Harley Davidson- Retirement project
2001 VW TDI Jetta- 238K miles- stock.. for now. ---> 2011 G3F ---> maybe 2012 G3F, Beta #14-->#2-->#5-->To be sold!