I bought the relay and wiring from Painless Wiring that makes all for headlights come on when the brights are turned on but honestly couldn't make any sense out of installing in my 2004 Blazer, may e I was sent the wrong unit for my vehicle.
So I'm asking if a ybody else has heard of sp.icing into the solid yellow wire on the low beam driver's side a d grou ding it to the auto frame?
If anybody can tell me more on how to make my headlights quad-lighting when my high beams are on please tell me all the information you have that you know will work for my '04 Blazer.
Thank You All

 

The quad-beam mod is quite common on the forum. There's several stickies and prominent threads if you search for 'quad headlights' on the forum.

Note that there are a couple different wiring requirements depending on what model truck you have. There's descriptions on the forum for these.

On my 2002 crew cab Sonoma all it took was grounding the yellow wire of the driver's side headlight harness. I just grounded it to nearby on the rad-support. Took 10 minutes total.