[USNSCPO]

Thanks for the reply, SuperH. Thought I'd get more suggestions than one so far...:P

No fix yet. Parking assist in the audio is what I suspected, thx for confirming. I wonder if its working and simply not generating the tones because of the radio being dead? Maybe I'll check the PA sensors with a multimeter and see if they are getting power. I'm still scratching my head on this.

Disconnected the batt overnight in the far fetched hope of triggering a reset of something-- nada. I've also traced all the radio related wiring in the trunk and its all solid. I've yet to pull the radio and check the wiring and rear of the headunit...

Symptoms so far: no power to radio; no lights for the climate controls but heat and ac still work; no audio from the parking assist; continuous blown radio fuses while sub amp installed with ******** harness; no blown fuses since uninstalling the ******** harness.

At some point I'll take it to the dealer... but I'm not looking forward to fighting with them over this being warranty work. The only thing the ******** harness does is pull low signal for input to the amp and provide remote power-on from the factory amp's turn on signal. In effect, this configuration does not generate any voltage or signal into the factory system. It therefore should not be responsible for creating a short or power surge, yes? No?