We can offer you a choice of either 1-1/4-inch Class II or 2-inch Class III hitches for your 2015 Mazda CX-9. When there is a choice I always recommend the higher-capacity 2-inch Class III type since the cost is not too different. Of the options available I suggest the Curt # 13575.
This hitch installs without drilling and includes all required mounting hardware. Written instructions, a helpful article and an install video are all linked for you. The only special tool needed is a torque... view full answer...
Your 2010 Mazda CX-9 does have trailer wiring available to install that will allow you to power the lights on a trailer. I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118520, which is an easy plug and play installation with the plugs available behind the trim panels in the cargo area.
If you also need a hitch for your CX-9, the Curt # 13575 is a great choice that will give you a 2" receiver that's well suited for towing. Curt hitches are known... view full answer...