Install is complete, other than awaiting parts to add the USB port. That’s why I haven’t reinstalled the trim yet in the photo. Sound is good for stock speakers, wireless CarPlay is fantastic. Still figuring out all the possibilities. Regarding the topic of grounding the parking brake input, my reading indicates Pioneer got wise to that and the HU requires a change of state to enable those functions. Defeat devices are sold, which are basically a relay. I just took the easy way out and hooked it up to the parking brake. Thanks again to all the contributors to this thread. I really appreciate the help.