2004 Buick rendezvous
new batteryNew ignition switchNew radio (old radio did the same)
doesn't play. Will only play sound if door is open and car is off
Checked the accessory relay and power retaining relays. .all fuses (I think) checked
Doesn't seem.to be body control module issue
Awd disabled and low tire pressure lights stay onAntilock light comes.on. When car first starts brakes def feel like.abs fails and 10 seconds.later it's normal
power seats do not.work
Power mirrors do not workDoor once locked by themselves randomlyNo door chime. Rear hatch doesn't work
random buzzing sounds occasionally from rear driver side door panel occasionally gas will say it's empty and isn't.

Runs and drives well ☺️ 🤣



Really struggling.on this please.help

My thoughts are ground bus issues or I've heard other ground issues.