You can use the Roadmaster base plate kit that fits your 2005 Kia Spetra5 part # 2109-1 with a Blue Ox tow bar but you'd need the adapter # RM-032 and you'd be set. You wouldn't need anything beyond that. view full answer...
I checked with Kat's and the correct engine block heater for your 2007 Kia Spectra5 is the part # KH11402. This is a frost plug style heater that will simply replace the factory frost plug at the front left side of your engine block (when looking at it from the front of the vehicle with the hood up) and submerge into the coolant. view full answer...