Hooked it up to a Pioneer double-din head unit, usb and aux are in the rear. The metal is decent for the amount it?s being sold for. Las estuve buscando por mucho tiempo por que mi talla casi nunca esta disponible, pero lo logre. Sehr bequemer Schuh. look cheap. I apologize for the length of time that has past since I ordered and received the black BearPaws. This was for my boat, I have had Pyle products in the past with no issues. What the heck? These are so uncomfortable I can?t believe I wasted money on these If you sweat much this problem is compounded as the seal is now wet and easier to be disturbed. My husband talked about them on the drive home.