A) with PLC, without the two systems being connected (house and car) transmissions have no way to get through.
B) It takes a really good (read that as expensive) inverter to produce a clean sine wave output. The square wave tends to let the magic smoke out of the modules.
C) If it's a single cam you want, the inverter can be taken out of the mix as the cams themselves run on DC voltage (some at even 12v).
An advanced search will turn this topic up from the past.