so i've had my car for almost 2 years now and for most of that time my keyless entry transmitter hasn't worked. not realizing that it had batteries i just didn't do anything about it. but last night when i was talking to my buddy about it he took a knife and popped it open and sure enough there were two large watch like batteries. so today i popped it open again and saw the batteries are 3 volts. i went and bought a pair and tried putting them in and they are thicker than the ones that came with the transmitter. can anyone help me find the kind i need???