I've done it. Lots of fun....my suggestion, let the pros do it. The only thing to remember is that if they tell you you have to pay a $hit load extra for the doorlock/unlock because they have to build a relay system with a 1k resistor blah, blah, blah...tell them to skip it. Tell them to do everything else but the doorlocks. You can do it yourself in like an hour with a $10 relay and pack of $2 resistors from RadioShack.
