1998 BMW 528i Remote Start, Any tips?

For the parking lights, you can also use 6amp diodes instead. This makes for a much cleaner/easier installation since you don't have two relays to wire. These diodes are available at Radioshack. Also, DO NOT come anywhere near this car with a test light. ALWAYS use a digital multimeter or computer safe test light. 556U works fine...the instructions that come with the 556U explains how to install into European cars. All a 555B is a 556U with the antenna cut from the wire harness.