Hey, is anyone using these DDM kits for German cars? I've had them install on old Lex without issues but I'm planning to install the new 55w kit on my ML.

The site list some stuff to buy extra like:

HID Harness
Error Eliminator
Adaptor cables

I know I'll need the resistors to get rid of the error codes but will I need the harness and the adaptor cables? I thought the HID kit already has hid harness? or is it something different?