alarm and keyfob issues

[darksobsession]

i am having two problems

i have a viper alarm and two keyfobs. one keyfob seems to work every time. the other only sometimes. it was doing that awhile ago and i changed the battery and it was fine for more than three months. now it doesn't trigger the car for something like 3/4 presses. i put in a new battery and that didn't fix it.

issue 2 - sometimes, (with both fobs), the locks lock/unlock but the alarm doesn't chirp. the horn is really close to my CAI and i had to position it where the hood might be pushing on it a little. (i didn't have this issue before the CAI.) i think the ground might be a little loose if it does get pushed by the hood, but wouldn't that disable the whole system? what would cause the alarm to stop but the locks keep working?