I pulled a Replacement Barrel Nut # 853-0446-06 and a Replacement Square Head Bolt 853-2089 from our warehouse and found that they do work together. Check out the video I attached that shows that they do work together. view full answer...
If you have a 7-way round pin connector on your Volvo, the adapter you can use is part # 47405.
If the vehicle connector is round but has blade connectors and you want to attach a 4-way flat connector on the trailer you need part # PK12716. view full answer...
Draw-Tite trailer hitch # 36297 is listed as a fit for the 2002 Volvo Cross Country. It also fits the 2002 V70 which appears to have been a separate model.
Since you plan on doing some towing you can use 1-7/8 inch ball # 19256 or 2 inch ball # 19258 depending on the requirements of the trailer coupler. And to add a 4-Way flat connector at the back you can use # C59236.
Be sure to consult the vehicle owner's manual for specific information on towing with your Volvo. view full answer...