The door chime is through the radio?
all new head units that are double din display the date
im not trying to sound argumentative but interested in the setbacks - that's all

My regal has the monsoon. The deck plugs into the stock harness The stock harness connects to the monsoon system. No changes had to be made.

Im intrigued that you guys have soo many hurdles and just wanted to see if I could offer any help