Prestige APS997 Installation

[Bluffnaked]

I want to put this alarm on this car, it's decently priced on ebay. The problem is I can't find a shop that will install it, they all say "we won't install anything but our own products." I just don't want to pay the 600 bucks. My question is, how hard are these or any remote start,alarm, keyless entry systems to be installed on a 2007 Yaris?

I'll assume with the right directions and wiring diagrams for someone somewhat mechanically inclined it shouldn't be to difficult. But any input would be appreciated.


Also anyone know what a External Superheterodyne Transceiver Antenna is? I know in my two other cars there was an antenna mounted behind the rear view mirror for my rs/alarm system.