2006 A4 Convertible 1.8T

equiped with Bose Concerto Radio / CD player

i get intermittent reception, the CD always works but the radio comes and goes.

I suspect the problem maybe related to the ignition barrel ?

or maybe the ariel which I believe is in one of the doors ?

the stereo was factory fitted and not an after market upgrade.

Any suggestions, it’s driving me mad !

Had exactly the same issue - have you had water in the boot? The amp's in the boot, under the clip off cover on the underside of the boot lid - one of the connections was loose and the whole area was very wet, which these are prone to apparently - works almost perfectly after a bit of a bodge 

Thanks, Andy. I’ll check it out and let you know.

Hi Guitar man

I have just repaired the same issue . 

The aerials are located in the boot lid itself . . take off the warning triangle and remove the 2 allen bolts . there is also a screw in the handle on the left of the boot lid . pull the trim off and you will see 2 aerials either side linked together with a black cable . On the left of the boot you will see where the cables come out of the body and enter the boot lid . with the radio on wiggle this cable and check if reception is affected. These cars are notorious for braking the cable inside the black rubber gaiter leading to the boot lid. hope this helps