Help removal of old Triad car alarm system without schematics or remotes

[barny]

I want to remove a TRIAD car alarm system installed in late 1998 or so. I bought a used Mazda minivan without any remotes or instructions/schematics. My minivan has Power door locks. I want to carefully remove the old Triad car alarm wiring and install a good basic car alarm that will also manage my power door locks.

I have removed all lower dash/console skins and have complete access to all wiring. I also disabled the air bags as per the Mazda shop manual. The Mazda shop manual has great schematics and I also have a Chilton manual.

There's a lot of wiring under the dash and I just want to remove the useless Triad stuff. The minivan
and power doors operate normally at present.

Any guidance (especially for the removal of the Triad alarm) is greatly appreciated.

[autotoys]

without us being in front of the vehicle, we cannot give you any advice, since the installation of any alarm in any particular vehicle is ran per the original installer (ie: It is different in every model of car, and different for each installer)