What they said.
I got a 2-way Autopage alarm with remote start and all that good stuff for like $100 bucks or less... but it was on sale I think?
Either way, it's working fine for me. I installed myself.
The installation can be done by yourself, you just have to read up on your car and have a lot of patience... and invest in some butt connectors (piece of metal in the middle with heat shrink on the outside).
I decided to be brave and bring in an old fashioned Soldering Iron in my car... my cat ended up knocking it off of the stand, then it landed on my elbow as I'm knee deep into my dash board, I try to get it off burning my right hand, throwing it, burning my carpet, then picking it up with my left hand and burning my left hand... it wasn't pretty.
But butt connectors are expensive, about $2 dollars a piece.
But, I'd rather pay $20 or so dollars in parts than $200+ in labor.