Hey guys

I know its not Ford related but I was putting a new head unit in and used the aerpro connectors thinking that would make sure it was a simple job. Car is a 2003 Magna (TJ)

Once I connected the battery I have lost interior lights, central locking, the odometer reading is gone and the fuel gauge stays on empty. When i start the key the dials all flick up and then drop back to zero. The speedo is also always illuminated now too.

I have checked all fuses and they all seem fine. Stumped and hoping someone has some ideas.

Thanks in advance!