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C5 alarm system upgrade


Active member
Apr 11, 2001
brooklyn n.y. usa
77 with a blown 540 in it.99 convertible all stock
I upgraded the alarm on my c5 as per the tech article that we have all probaly seen.I added a shock sensor and a radar sensor.The alarm works great with these features.I had 2 problems,fiirst the wire in pin #9 they say to use is blue on my car,they describe it as being green.Maybe 99 is differant.Next with the sensors hooked up I get a tonneau cover ajar alarm on my dash and the tire pressure monitors don't work.As soon as I disconnect the sensor the alarm for the tonneau goes off and the pressure monitors work.Am I using the right wire with my hookup and why might these problems be happening.
Hi 540vette,
What tech article? Is there a thread to it?
Please let me know

I would also like to install these two items. If you have more info please bring it forward.

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