Thanks for the tips. The anti-theft and Keyless Entry Control Unit is on this circuit, this likley explains why I thought I heard a momentary audible beep the last time I put in a 15 amp fuse that immediately blew.

So I'll be doing research on the alarm unit. Have any of these come up in any of the recent VX parting-out sales? I would love to just replace it, but I assume it must be accompanied by the fobs?

My fobs seem to work with newish batteries; locks work; alarm goes off if I set alarm and subsequently open the door with key; turns off when I turn key On, Off, On; I have had a few times when I locked it/armed with the fob, return and I can't turn the alarm off or unlock, this requires unlocking manually and the alarm going off.