Good to know! I also found out the 2660 is the 2600 version that is sold at big box stores. Someone correct me if I'm wrong please but they are essentially the same thing.
I have a couple car audio stores near me that are selling those but at a premium price.
I've been interested in doing this for the last couple weeks or so and it sucks to want a Pioneer (looking specifically at the 2600nex) head unit right now. I didn't know at first but apparently there's a shortage due to the pandemic. Because of that, prices are nearly doubled.
I would look...
