Audi Concert what size amp in rear?!

[localknoxville]

Hello, what size AMP should be in the rear of my Audi Concert stereo, when I took it out over the weekend, it had a 15amp in, which I am pretty sure is too big. The stereo all works still with it in but it don't light up when my headlights are on! Could the large amp of blown the little LED's bcos of this?! Thanks

 

[JohnE]

By AMP I assume you mean what rating fuse should it have? 5 amp is usual - a bigger rating won't, of itself blow the illumination - the fuse is there to cut the power if there is a short circuit or overload. You haven't said what year - there are different types of stereo systems/connectors for different years (although I don't think the fuse ratings have changed)

The lighting for the unit is controlled via canbus signals which arrive at the unit via a plug in the back. Either there's a faulty connection or the unit's faulty.