2016 kia soul standard key aux wire placement for rear defrost and programing options.

Question

Looking for wire placement for the aux function for the rear defrost. wire color says White Dash fuse box, plug (E) pin 16 . But no picture on wire color .To verify i have the right connector .Could i just tap into the switch itself or is it at this pin because its after a relay.The aux wire on the evo one is a neg output does that mean it has to go on the neg side of the wire or does this need a relay to change output to correct trigger. Also what programming setting would be the best to  use.  Testing rear defrost to see if latched or pulsed is itbest to check at switch or from the rear defroster itself.

Answer 1

On the fuse box where the connectors are it will be engraved E. All connectors have a letter engraved next to it.

The wire in pin 16 should be tested first. It will most likely be a latched signal since it poweres the rear heated relay.

Connector E is blue, wire needed looks to be dead center.