Is there an interconnect somewhere on the 2000 S10 where I can wire an alarm system into, or will I have to run wires. My truck shows I have an active Security Light on when I start up, however I havent been able to find anything to connect an Alarm System too. :feedback:

Your passkeyII system is about to fail. It is very common and expensive to fix. There are no plug in alarms for your truck. You can look up info at www.bulldogsecurity.com

You are best off getting a good shop to install the system.

they are usually cheap and do a bang up job and know how to wire it properly.

You mess with the blazer wiring without knowing what you are doing you are looking for big trouble.