I just tried lumbar/lateral air inflators on my used Trans Am WS6 30th Ann Ed. (white leather power seats). Pass side works like it was delivered from factory yesterday, but Driver side has no balloon movement at all. I can hear the motor whizzing for Driver side though. Is this likely a busted hosehose or a balloon when BOTH lumbar and lateral do not work? Is there one pump in driver seat, and it crosses over to Pass. side? (I only ask that based on what I saw on forum elsewhere?) p.s. Is there a good video on Youtube of what these inflators, pumps, hoses look like and how to troubleshoot? Thanks all !