According to the owners manual for your 2009 Scion xD it can only be flat towed with all 4 wheels on the ground if you have a manual transmission. You can dolly tow with either an automatic or manual transmission. So a Tow Dolly # RM-2050-1 is likely going to be what you want. If you have a manual transmission and want to tow all 4 wheels on the ground please let me know and I can list the parts you will need. That install is likely going to require you to go to a local shop to have everything... view full answer...