I need Help!! (w. new deck)
 

Heres the story. I purchased a new alpnine deck from best buy and installed by best buy. A few months ago it was stolen out of my car in front of my house. Was without a deck for a while put my stock back it for a a couple weeks (it work except i only was able to pick up a couple radio stations.) Now i got a new deck alpnine cd9884 and purchase a wiring harness off ebay. Wired everything up correctly triple checked it. Went to put it in and theres no sound, the deck turned on though. I tried a cd didnt work, i tried radio... nothing, i checkd to see if the mute was on it wasnt. Does anyone have an explaination for what could possibly be wrong or how to fix it. I brought to 3 different ppl and they didnt knw what it was. and I have a 99 passat the 1.8 Thanks any help would be appreciated.