bring with you your ews pack yellow top,silver body, reciever box, black with two green wires connecting to the antennae for the ews key which you also need......after that the whole engine harness, 3 relays, dme , and a very good wiring man put everything back....i finally got my car back so good luck!!!m40-m42 e36 ews2 swap!Good luck!!oiiii hidup malatbimmer!!!