Hello, I have an OLD Maganavox TV which has no connections except for a coax cable port. Currently a Cox Scientific Atlanta Explorer 8300 DVR is connected to the old TV. I just purchased a cheap Insignia DVD player and can not figure out how to connect. The DVD player came with one set of wires in red, yellow and white which are glued together. I am very techincally challenged. Can someone help me? I would like to watch DVDs on this TV.