Trunk Wiring problems of the 2018 Dodge Charger

Problem 1) I have 2018 Charger. Couple of thing have happen where the rear passenger tail light come on and goes off randomly . I have change the fuses in the fuse box. Have purchase a additional tail light and doesnt not function properly. It's a serious electrical issue or improper grounding somewhere in the car harness or wiring. Problem 2) the abs & traction control light comes on and off while driving. The brake pedal will tighten up some times. I change my brakes , keep my wheel balance and rotated. Still having issue. Again speed sensors have been replace. Problem 3 ) uconnect radio something it will freezes up and wont play any sound , wont connect to the phone. It's blank out and I have go to the back fuse box in the trunk and hard reset it by pulling the fuse.