Thanks Rus - yeah, worst that happens i blow a 2A fuse anyway.
I have a few 30A fuses in my fusebox.
I don't know how the PO blew #16, it's for the heated seats.
#19 is for the IHKR, strange it didn't blow when my IHKR shorted out.
Strange, but I don't understand how the unloader relay would do that.
It would be handy to have a socket that was hot only with the ignition on.