[FRSPirate]

There are some unused open terminals in there (cabin fuse box) that are constant hot. I remember running into them when i was wiring the remote line for my sub. Other than telling you to use multimeter or test light to figure it out, i have no idea offhand which are constant. If you do not have a test light, you could always make one with a spare 194 bulb, some wire and a couple alligator clips.