I also have the six CD changer at the bottom of the console. The CD changer is useless with any aftermarket radio. I opted to leave it installed until I figure out how to make a drawer or someting to cover the hole.
dtownfb is correct in recommending crutchfield. That’s were I purchased my pioneer radio with handsfree bluetooth that I love. Extremely clear sound to voice calls. Better clarity that my Acura MDX handfree system. Imagine that!
Installation of a new system is very easy. Do not pay for that service. Crutchfuield will send you an installation kit with everything you need. You only need to do some soldering of the wiring of the new unit and the connector adapters for the original radio connectors.