I'd like to see if theres anyway possible to boost the range of the factory remote. which is the weak link? the keyfob transmitter and its lack of power output/antenna or the receiver end of things? i'd like to be able to arm/disarm from my apartment balcony which is about....out of range i'm sure. range seems to be about 100ft give or take, i don't know how old the battery in the fob is though. i'd need to about double that, thoughts?