2007 kia sorento wiper protection.

Yes much but copy the ISO convention, 85 is the NEG and 86 is the POS on the coil. I know in this instance it makes no difference. I know I sound OCD but honestly if you ever have to look at a factory relay, failure to follow could cause system damage on modern vehicles. Remember the third diode, across those coil terminals*, band to 86 it can protect your R/S. *Some relays have a built in diode, especially prevalent on far Eastern vehicles such as yours, hence my comments.

Both cases, sorry we're talking across each other!

i think you have covered everything. Thank you very much. The relay across the coil is to protect from sudden spikes am I correct. So in general.... never a bad idea to just put one on right.

Yes about the spikes, I learned the hard way (blown alarm components) when I got lazy, I daren't now and so to get it right, neither should you. The other two diodes are to protect your by-pass and the relay and the alarm from each other!

I agree. At .06 a piece for 4004 diode and negligble time it is time and money well spent. The RIGHT way is the ONLY way. Thanks