Being the Electrical guy that I am, I can totally appreciate everything you're saying. But at the same time I'd have to dissagree with your statement on the 2nd paragraph of "There is no need to upgrade your marker, parking, etc, etc wiring harnesses if you use LED technology" As I have LED's on every socket of the parking light circuit and they finally got brighter apon adding the PLH or Parking light upgrade harness. Reason being is that the old wiring, connectors and lack of a relayed circuit caused a mere 10 volts at the rear drivers side sidemarker (one of the furthestpoints from the switch). Yes, LED's draw significantly LESS amperage but still reguire a true 12 volts, which most 240Z's do not supply. I'm not here to argue the fine points, trust me. I appreciate almost all electrical, lighting, LED, ignition and alternator upgrades and or improvements done to the 240Z's. So Please do all of your intended improvements and get back with us. That's what it's all about here, Restoring and improving our beloved Zcars. Whether on a budget or unlimited bank account, we all try and help each other in some manner or another. Have a great week-end and keep us updated on your progress. Dave