[Phil27]

http://www.nostalgiaair.org/pagesbymodel...013797.pdf

I realize this a a basic question but I do not want to screw up the polarity or worse when I solder in my replacement electrolytic cap.
I am looking at part #54, a 16 mfd cap that is from what I read on the Ryder changes actually part #41. That’s no problem but I don’t know where connect my new 16 mfd cap. 
I’m assuming the + connection for my new cap is to the three resistors currently connected, shown in the photo, but is the - connection made within the old cap. I would prefer to place the new cap under the chassis but don’t know about the - connection.
Any assistance would be appreciated.