Myninjer

i may be searching it wrong in here, but i was just driving my car(2004 ls430) and got to the drive through. my music was low so i didn't need to touch it. as i was ordering and got everything, i noticed i had no sound. everything works. problem was the steering wheel volume doesn't work and the **** doesn't either, but i can use all other functions.. what should i do? please and thank you.