I'm looking to make a harness to use the wrx fans on my rs with the gd rad. I found out the wiring . The 4 wire one the two bottom are grounds and the top are power. Would it be safe to splice the to power wires to the one power on the rs? Would it be too much power for the fuse relay? If I only use one power wire the wrx fans run on low speed and if I tie them together it runs on full speed. I tested it using a battery.