I am in the process of upgrading my 1994 Mustang Convertible from the stock premium sound to the Mach 460 system. I know that I will need a few new harnesses to make this happen. The one I have pictured here, is for a Mach 460 system (it is the harness that goes in the front, connects the radio, CD Player and front amp). I am not sure where the two connectors go that I have circled in yellow. I know where all the other ones go.

I have three connectors under the steering wheel, one of which...

1994 Mustang Convertible - Mach 460 System