04-09-2018, 06:05 PM
are you talking about the box about the size of a tissue box that is on the floor at the drivers and passengers ankles? if so, i have those to and they are not speakers but aquahot heaters that are controlled by a rocker switch on each box that turns them on and off when the front heater thermostat is on.
tom
tom
2014 Haulmark 40' Super C on Freightliner Cascadia ISX15 Easton 13 speed
Former Owner 1990 38' Newell Coach 236 8V92
Former Owner 1999 45'8" Newell Coach 526 Series 60
Former Owner 2002 45'8" Newell Coach 608 Series 60