1998 vw passat wagon, viper 5901

Well I have this relay, it's 6 pins 80| 30 |M     87a K| 86

Blah that first pin is 85, not 80. So the pins are labled, 85,30,M,87a,K,86

Ok I'm having an issue with the alarm, everything works normal except that when I remote start it after it's been sitting a while the factory alarm (horn honking) goes off. I think there might be a way to vag-com into the system to disable the factory alarm but I have to look into it more. Right now it's quite annoying because I remote start it at 6 in the morning and the horn starts going off! I have to unlock the door first I guess as that's what disables the factory alarm?

Yes. if VAG com succeeds please let me know, or disable it physically by cutting the siren lead or physically removing the siren, cut the indicator leads and one of the 3 ultrasonic leads. That's what I have to do on MklV Golfs.

Don't think mine has ultrasonic, it's just a basic door trigger system.

Doesn't look like it's possible to disable the alarm in software, kind of stupid really. So I'm replacing my sunroof and have all the interior panels off in the back atm, so I figure I might as well disconnect that factory siren. Hopefully the alarm going off doesn't effect anything else?