Please help! I purchased a CX5 and I love it but I need to carry 2 bicycles. I am not a do it your selfer and the dealer wants to charge over $600.00 for parts and labor. On line I found the Mazda hitch mount and and trailer hitch class 1 total of $378.32 for parts and my nephew can do the install. Any feedback? Is this the best way to achieve my goal and save money?