Power door locks

[1stgenlexusgs300]

So my 93 gs 300 is being goofy. My door locks are opening and closing on their own. I do have an aftermarket alarm with a remote that powers the door locks. I checked that and even took the battery out of the remote and the door locks are still occasionally flipping back and forth. Any ideas?? 

[RX400h]

I've never seen mention of something like that happening with just the factory setup, which makes me think it DOES have something to do with the alarm. If you can, check any wire connections to the alarm module to see if one is loose. Wiggle each to see if the locks act up.

[Bykfixer]

I'd check the sensor the remote talks to.