How many ECUs are in a 355 Spider and where are they located? I think the car alarm and demobilizer are under the leather wrapped cover behind the driver's seat (inside two riveted covers). Is the engine ECU under the leather wrapped cover behind the passenger's seat? I believe there is one for the antilock brakes too and one for the active suspension. I think there's one for the HVAC, another for the top (and seats all in one....is this under the top hydraulic cover?). Maybe others too. Don't know for sure how many nor where they are located. Can one of you confirm the actual quantity and their locations?