W/0 UY4

In Line Connector C303 (W/O UY4) (part 1 Of 2):

In Line Connector C303 (W/O UY4) (Part 2 Of 2):

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes