the sub

[mattd03]

should the factory sub be working if i have an after market head unit in my 03 ? mine is not so if so a lil help please

[illegal]

as far as I remember it should be. Might need the amp turn on wire hooked up. Go back to the installer and have it checked.

[janivi]

no.

oem head unit had a built in amp for the sub.

[mattd03]

thanx iwill go back 2 stock