I've created myself quite a problem.
You can tell me how dumb I am, this is allowed.

I installed an aftermarket audio system, ran all the wires, new speakers, amp, sub etc. My friend helped me since I'm not into audio stuff.

Once everything was working, I was doing lots of work in the trunk and decided to remove the stock amp and sub as they were disconnected and no longer needed and getting in the way.

They were actually disconnected even before I bought the vehicle.

Then I saw big looms of wires, but the connectors were not connected anywhere, so I decided to remove them lol.
I thought I couldn't hurt anything since if the connector is not connected, all the wires must not be doing anything anyway, especially since stock amp and sub are gone. That's what I thought...

Well once the surgery was completed I found out I must've cut off some extra parts🤣 Good thing I'm not a surgeon

I guess the biggest thing that happened was that my remote key stopped locking and unlocking doors. The secondary problem was that my radio stopped working (which is probably just missing power and should not be hard to mix in order to revive my audio system).

Now I was poking around and I think I found some wires I must've cut by accident related to functioning of the remote.

Here are the wires which are cut at the Amplifier/trap circuit (if that's what it's called).
#4 in this diagram
Single parts f antenna-diversity | BMW X5 E53 X5 4.4i N62 USA

This is all I've been able to find.

Now I'd love to connect these wires wherever they're supposed to be going to get my remote working again.

If anyone knows where these wires are supposed to go, please let me know!

Here are a couple of pictures to show the 3 wires that are cut and that I suspect caused the remote function not to work