Ford Ambient Light Kit/Interior Lighting
Unfortunately, on the newer Mustangs the harnesses/connectors for MYColor are absent if you get a Base. I had to splice my lighted door sills into the dome lights. Since I got the cupholder with the LED ring, i am going to see if I can splice it into the Ambient lighting kit from Ford. This would allow it to change colors but keep its OEM look by using the rings.
If not, then what i may do is drill very small holes behind the LED rings and secure the LEDs from the light kit behind the holes. So it illuminates the rings but doesn't look tacky.