I need to connect my 10 y/o Sonic Blue repay TV system to my new Insignia TV. I can get a signal to the TV but it is in black and white. My connection cable has 5 leads of red, green, blue, white and red audio. What ports on the replay TV do I use and what sequence?

It should work if you have the red,green and blue hooked to the component in, and the other red and the white for your audio.
Don't mix up the reds.