The signal is getting weak in my car key.
i replaced the battery two times but the signal or something else is getting very weak. i have to press hard constantly for it to finally activate.
I think the motherboard in the key is getting wacked.

How can i tell if its my key or the receiver in my car that's going bad?
Whats the cheapest way to duplicate my key? Is this something i can do myself? Can i buy a key on ebay, have it get cut and have someone program it for me for cheap? Can i do the job myself?

thanks