Hello again, sorry to bother so soon after my last post, but I've got a few more questions and I've yet to find answers in the Search here on PFF or other forums.

Firstly, there is a faint buzzing noise in my engine bay when I have my battery connected, with IGN off/key out. Once the battery is disconnected the noise stops. By ear it seems to be coming from the trunk side, but its not from the ICM, and I can't tell if its coming from my alternator. When I get the car jacked up again in a couple days(i messed up my leg snowboarding on friday ) I will hopefully have a better idea what its coming from, but until then if yall have ideas i'd love to hear.

Second, on the passenger side of my trunk under the carpeting(on the upper "shelf" wall) I found a short harness with a connector for a 4 pin relay identical to the fuel pump or A/C relay connectors, alongside a 2 pin white connector. I have no idea what these are for, as there are no other connections i can see within reach.

Finally, my handbrake/trunk release. A previous owner swapped to grand am brakes(from what i've been told and from some paper records that came with the car) and in doing so, I don't have a handbrake anymore. The handle and connector are still in place, but the cable is gone. This hasn't been much of an issue since I park it in 1 or R depending on the slope, and it didn't interfere with my trunk release until now. Suddenly my handbrake light is on perpetually until i turn the key to the ON position.(key out the light is on) The trunk release button no longer works, and seemingly randomly, when i turn the key from ON to OFF the trunk pops open. It doesn't happen every time, but the majority of times it does. When I had my carpeting all up, i found the electrical connector for the handbrake, unplugged. If i touched it to the handbrake side of the connection, the trunk would immediately release. It seems that without the cable in place, the handle can move enough on its own that it will ground out, and the circuit will stay completed. If I kept the connector in place, (which as stated before would pop the trunk) the interior lighting would noticeably dim. I have no idea what is going on with this part.

I'm sorry this is so messy(especially the last topic) if you need further clarification on anything please let me know. I can provide pictures of anything you need as well.

EDIT: Here is photo/video evidence of these

Buzzing noise: https://youtu.be/eF0_CPmDYdY

Connectors:


Handbrake/trunk relase: https://youtu.be/olNgu9Qzrhs

[This message has been edited by A_Lonely_Potato (edited 03-06-2022).]

[This message has been edited by A_Lonely_Potato (edited 03-06-2022).]

[This message has been edited by olejoedad (edited 03-06-2022).]