I'm going to radio shack tomorrow. What relay do I need for this thing?? I tried to look for the current that this thing will eat but could not find it on the net, that's why I'm asking.

Thanks.

 

You can wire it firectly to any switch ignition 12v off the fuse block under the hood I don't remeber exactly which was used in my car, but I'll check for you if you still need help. And the directions called for a 20amp fuse, I have had mine in for two years with no issues.

 

whats a suitable source???

 

Get the relay, and also set up a circuit for a power inicator light. Search this site since there are several install guides on this and hooking up an electric water pump. Most folks pull power from one of the F.I. fuses so there is power tothe pump when the IGN key is in the on position.
Radio shack makes a 12v-30 amp relay, but I dont know the part number. I looked at mine and it must be on the installed end of the relay, but they are labeled as for AUTOMOBILE use.