ScanTool 145704 5' J1962M/F Pass-Thru to Open End OBD-II Cable Wire up your permanent OBD-II device while maintaining an open port for a secondary device Heavy duty materials and quality craftsmanship give the cable superior flexibility and durability Drain wire, aluminum foil shielding and twisted pairs for signal lines (J1850 BUS+/BUS- and CAN high/low lines) give the cable exceptional EMI noise immunity Mesh and foil shielding for superior durability and signal integrity RoHS compliant