Radio Problem - power, but no sound - Page 2

Ratty · 16th April 2010, 14:13

Hi Dome,
That sounds more like the head unit playing up.
Once the amp module is removed from the Bmw amp/crossover unit, it becomes a 'Passive' crossover unit, needing no 12v power supply. So unless your head unit has pushed enough power into the crossovers to damage them (unlikely), I'd try another head unit just to verify which part is really at fault.
Sound cutting out after a few seconds sounds more like an amplifierH/u problem to me.

jorijori · 7th August 2012, 09:25

Hi Dome,

Did you ever resolve this? Mine is doing the same thing.

Quote:

Originally Posted by Dome

Hi Ratty

First off thanks for the amp mod writeup-I had a friend of mines dad who was an electronic engineeer perform this mod on mine. It worked fine for a few months but has failled again-I get sound for only a few seconds then it dies. Is there anything I (as an elecronics amateur) can look at in the amp or is it best to hand it back to my mates dad? He's pretty busy at the minute and I miss my tunes!

Dome · 8th August 2012, 13:45

Hi there

Ratty was correct, I replaced the head unit and had no further problems.

Brian