Help!!!!! The other night at 1:00 am the horn started to blow and I pressed the Panic button on the key chain and it stop. 10 minutes later it started again. The neighbors were ready to kill me. I had to disconnect both batteries. Next day I connected the batteries but pulled the horn relay and everything was fine. Called a mechanic and he told me to put the relay in to see if disconnecting the batteries had reset the Gem. Well I plugged it in and it was fine for 2 minuites and the horn started again so I opened the door and it stop. I close the door and it would start again. So the mechanic said I have to change the Gem module. I tried to find a Gem module and a guy online that sales them told me he has one that is a newer version of mine but I am not sure if I need to reprogram this one for my truck or if it is just a upgrade that all I need to do is plug it in and go. My Old one is a F81B-14B205-GB and the one that this guy tells me is the replacement is a F81B-14B205-EP can anyone help PLEASE