Porsche 944 S2 Coupe Sunroof issues

[4HuddsGiants]

My neighbour has just purchased a Porsche 944 S2 (1992).
The sunroof opens when the alarm is de-activated and also when driving.

Please does anyone have an idea what may be causing this problem?

Many thanks.

[4HuddsGiants]

Cheers Zac, forgot about him, Armytage Road if I remember correctly??

[4HuddsGiants]

Thanks again, Steve is gonna contact him on Monday. I've found his website etc.

[AlBags]

It may not be a Porche issue ... It may be an aftermarket install.
There is probably something wrong with the Total Closure Relay or the Sunroof position sensor. These have to be set up correctly so the alarm knows when it is open or closed, before it can decide what to do with it on arming the alarm.

[4HuddsGiants]

Thanks Albags. Having just spoken to him, it appears that the vehicle is fitted with a Toad alarm, which I know do have certain glitches.