Audi Concept Replacement HELP!!

Not sure on A3S but do you have an amplified setup ie Bose? you will have to check that.
 
Dont see why it wownt work then,but you will need to wire in a relay...if yours is like mine the stereo stays on until the key is removed?

If so theres how to on here,but like i said the a3s im unsure about...you may be able to tap into somewhere,but not for the a4 owners.

im sure there would be a guide somewhere telling you if you need to or not.
 
Dont see why it wownt work then,but you will need to wire in a relay...if yours is like mine the stereo stays on until the key is removed?

If so theres how to on here,but like i said the a3s im unsure about...you may be able to tap into somewhere,but not for the a4 owners.

im sure there would be a guide somewhere telling you if you need to or not.
So is the relay something extra i need to buy. Where can i find a guide on how to do it? Thanks.
 
Im not sure if the a3 needs it im unable to copy and paste links atm, google it and see what links you get from this site. Post on the a3 section or look through the how to's on the a3 section inside