I bought some MIL eliminators (the kind you splice in) for my new off road H and in the instructions it says not to mess with the 2 white wires. I understand that for the splice job of adding MILs but when I extend the harness, I obviously have to cut them. My guess is that I need to be very careful and label everything so that I don't cross-up wires. Any advice (other than spending a crap-load of cash on the plug & play models)? Thanks.