What is the consensus on the hd radio for the avic d3? I remember with the original unit (GEX-P10HD) that there were a lot of complaints but don't remember what the deal was. Now I see a new one, GEX-P20HD tuner, on pioneers web site that looks to be compatible. Can someone give the the low down on how well these work with the unit and what complaints people have with them? Any reason to buy one over the other. I'm trying to figure out if it is worth adding to my d3 that I have otherwise been pretty happy with. I didn't turn up much with the search...

i have the 90bt with the gex-p10 and mine works great. it does everything 20 does except traffic.