2019 frieghtliner cascadia 2 unknow wires yellow and dull green. Also on board computer wont turn on without factory radio plugged in
March 31st, 2020
The best advice I can give you is it sounds like you have a CAN-BUS truck where the radio is connected to the onboard computer. You can find this out by asking your truck service dept it yours is.Leave additional wires alone. Your aftermarket raio can't take advantage of accessory wires only supported by the factory radio.