led daytime running lights car

I currently have a 2012 Kia Optima SX. It did not come with LED Daytime running lights. However, I have purchased and OEM model that is used in later car models. My car is not plug and play. The LEDs that I have are able to run at 50% or 100%. My plan is to wire them in so that when the ignition is on and headlights are off the DRLs with run at 100%. I would like the DRLs to switch to 50% when the Low beams come on. I would also like to add a switch inside the car (simple SPST) to be able to control them on/off when desired. I have done a ton of research, including here over the last few days and have come to the conclusion that I need to use a SPDT relay to control the functions I need. The problem is that I don't have the training to put the wires in the correct location once I have the relay. I have found a few posts that have described what I should do but then I see others that contradict that. What I think I need to do but would love it if someone could confirm or even throw me a diagram? Also, are their stores where I should and shouldn't buy these off the shelf (Pep boys vs. West Marine)? 30 goes to one side of switch and other post of switch goes to fused power source 85 goes to positive side of headlights 86 goes to ground 87a goes to high power or 100% 87 goes to low power or 50% Thank you for the help Mike

Didn't you post this already, and wasn't it answered? I distinctly remember it. I think it was in a different section, thus THIS is a double post. Well, one of them are. Seems moderation is a little lax.

This is a duplicate (OP posted the same day) of new led drl for 2012 kia optima. And yes, it was answered.