2002 Infiniti I35 electrical issues

Ive messed something up pretty bad. I have an infiniti i35 2002. I took my aftermarket radio out to add a ground loop isolator. I somehow started messing with wires which lead to me fooling around with my hazard switch since it was connected to the lower panel of my radio. Wires began to touch and get mixed up. I think ive sorted everything out but now I have the following issues: hazard lights do not flash, turn signals dont work, dashboard illumination as well as the heat/ac turn off completely when I turn my head lights on, and my radio wont turn on. Ive tested the power source at the radio wiring harness with a voltage meter and there isnt any power coming from it. Ive looked all over for blown fuses with no avail. I tested the radio with a 12v battery and it turns on, so the problem is in the harness. For the hazard switch, ive tested the flasher unit/relay and I heard the click for both of them. Ive checked fuses under the hood and they are not blown. I also tried disconnecting the negative terminal of the car battery to reset the system but nothing seemed to work. I know this is a bit lengthy but I wanted you to know everything ive tried already. Any ideas would be greatly appreciated. Ive been at this for the past week and its driving me crazy. Thanks!