I have the opportunity to purchase a A5 system for my van for a very good price (~$1300) new, uninstalled. Does anyone here have experience with the system as far as reception and how easy it would be to install? I've already installed two headrest screens so half the work is already done. Also, I have local waivers for the SD networks for my home system would I be able to receive those also on the tracvision? Thanks.