where is the stock amp located??? in a 99.5 a4
it is the audi concert stereo

 

I don't think the concert radio has an amp. If it does it will be behind the driver's side trunk trim.
You will have to take off the rear trunk trim, then pry back the left side trim and it should be mounted right behind the trim.

 

it should be a little mini amp attached to the driver side speaker. you cant see it unless you remove the speaker

 

thanks for the help!! i found it! it is on the drivers side rear speaker and its shorting out. anyone know how much that speaker with the little amp goes for. or where i could get a deal on one??

THANKS AGAIN!