I am trying to replace the blower motor resistor on an 04 GMC envoy. I have got the replacement but the only issue is the connection. This resistor has a seven pronged connection and the one I'm taking out only has 3. I was told I needed a 7 wire pigtail but I'm not a wiring expert by far and was needing a little help getting this wired. Also wanted to make sure I was given the correct parts in the first place. Any help?