Volvo Repair: 2001 V70 Wont start, ring antenna, spade terminal

Question
A few days ago, my 2001 V70 (115,000km) would not start. All electrical seemed to be working, but the engine would not crank at all (Boosting it with my other car did not help either.) I had it towed to a garage. They replaced the ring antenna and returned the car to me, telling me that the immobilizer may have been activated. On the day after I received the car back (I must have started the car at least five times), I'm having the exact same problem... It won't start. I've tried to start it will two other keys, but to no avail. I've never had problems with this car before. Do you think it is the ring antenna again, or something else?

Answer
THE CAR WILL STILL CRANK OVER WITH A BAD IMMOBILIZER ANTENNA RING IT WILL JUST STALL IMMEADIATELY.I WOULD START WITH REPLACING THE SMALL FEMALE SPADE TERMINAL ON THE STARTER I HAVE SEEN THEM GET LOOSE OR CORRODED.IF THIS IS OK IT COULD BE A BAD RELAY OR STARTER.DO THE WIRE FIRST