Clean up wiring ailse 6. What are these relays?, Where do I find a full car wiring diagram? Options

[drem914]

I was going to go in and replace my headlights and front turn signals lights with the 914rubber LED set up and Spokes turn signal boards, but ran into some wiring and relays that don't make any sense.

Before I got started I checked the existing operation and found everything works except for the driver's side high beam does not come on. Next I went and started pulling the headlamp covers off, but before I could I noticed these relays connect to the headlamp harness. Anyone know what this might be?
Secondly, you can see by the harness pictures where they had spliced into the wires.
passenger side light
driver's side light
Is this part of an alarm connection to the turn signal lighting? (I had an alarm system installed way back in '85 when I used to park my car outside in an apartment complex.)
If so, how do I get the wiring back to normal?