Using a relay to auto-power on HDD and power inverter
Hello again everyone,
For the past year I've been using a power inverter to power my laptop and it's worked fine. I also have my external 500g hard drive hard wired into my jeep liberty. I am getting tired of having to flip the switch into the ON position for each of these devices each time I power on my car though, so I picked up a few relays to help me out.
The problem is though that I am not entirely sure how to connect them.
I currently have:
Which is the RL3040, a 12VDC 30/40A from the install bay.
I've search around for quite a bit but can't seem to come up with a clear answer as to how to connect it.
What I believe at the moment is that I need an ACC wire connected to the relay, along with the power line from the actual switch on the inverter, is this correct so far? And if so, which number corresponds to what? (Ex. 80 = ground)
The closest thing I could find to a diagram as to what I am doing is here (it is not mine): http://img14.imageshack.us/img14/2800/78856443.png
except that I don't want that switch on the left hand side of the diagram. I just want the inverter to power on when I turn the jeep on.