1995 Grand Prix Alarm/Door Lock Problems

[bluewhite4]

So an attempt was made to put an aftermarket alarm in the vehicle so that remote keyless entry would be possible and now there's nothing but problems.

 

1. First the car wouldn't unlock when put into Park, it would just lock when put into neutral or drive.

2. Now its decieded that the automatic door locks button will only work when the car door is closed. Sometimes it doesn't work at all, and others it sounds like its straning to work.

 

I've pulled the alarm hoping that might solve some of this but it didn't. I've also checked every fuse I could find and they all seem to be in working order. If anyone has any suggestions, please help.