Gen 3 Keyless

[RSCD_HireD]

i was looking at some alpine alarms but not sure if it has keyless.....it says "Door Lock/Unlock Outputs" but does that mean it will actually unlock/lock door? or do i need to buy more parts to enable that option......

[Silver Streak]

Yup, that should unlock/lock your doors....

The only thing you MIGHT need is a relay if the alpine unit doesn't reverse the polarity for the door unlock/lock button. Some door locks need a postive signal to unlock the door, some use a negative signal. Some alarm units will allow you to configure this on the unit (most do), I assume the cheap ones won't. You should be ok with the Alpine, but a relay is only $5 anyway.