love my 2004 - went to Cadillac to get a extra key fob and get it programed and while waiting he comes back and tells me that his technician says that if it has 4 programmed fobs already that when he try's to program a new fob the whole ignition module will shut down and be locked out and will need to be replaced so and it will cost 1800 to get new key fobs and module or part - so I said forget it and I'm thinking about trying to program the new one I bought from them myself it don't look to complicated - is this true that if you try to program more than 4 fobs it will mess up your ignition or module and be locked out? have you guys programed your own fobs ?