I own a 2001 Grand Am GT. I have an aftermarket stereo and about two years ago I had an Ungo ProSecurity SR5000 installed. Initially, everything worked fine with a small problem of not being able to consistently lock the doors with the remote (happened occasionally). 6 months ago, during this past winter, my remote start would not start the car. The engine would turn over and just as you would think it was going to start, it would turn off. This would be repeated for a few times before it would give up. Once again, this would happen occasionally. A few days ago, it decided it wasn't going to start at all with no response from the remote (no locks, start or alarm) or from the key itself (just dead, no cranking). This was a problem I couldn't ignore so I took it to the GM dealer. After telling me numerous codes have been stored in my sensor module, including security alarms, I instructed them to disable the alarm and clear the codes. This appeared to work for a day but now it sits dead in my parking lot at work. I'm on my way to take it back to the dealer to, most likely, get the ignition switch replaced (a problem they assessed earlier). My question is, did my alarm system somehow cause my switch to fail or did it do it on its own and I can have my alarm hooked back up? Is it just a problem of incompatibility between my alarm and the internal security system or is there a way I can actually use the alarm I purchased? And why would it take so long for the incompatibility to start messing with everything else? Thanks for any thoughts you may have.
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