Noise Megane Scenic 1.9 dt

I leave the link to a video that I have uploaded to YouTube with a noise of belts that I can't locate it is heard as within the distribution but I have not removed the tapas since I have the doubt that it is inside or outside (service belt). The car is a Megane Scenic 1.9 DTI of 2002 to which a compressor for the drain air conditioner recently mount (I say it in case I had something to see). Today I have tensioned the belt a little since it was noise by turning the direction (he skated on the steering pump) but the noise by crickets persists. Greetings and thanks.

Friend is easy to determine where the noise is, take out the elements of elements (alternator, hydraulic, etc.) and you have walk the vehicle if the noise disappears is from the belt or from any of the elements, if the noise persists is of the distribution, now Conditioning, tensioning bearing and crazy bearings, everything that turns less the crankshaft obio, and you will easily hear which one that puts the noise. But there is a special point if the noise was not before you put the new bomb that you installed the most caused schedule the bearing of this is the problem.

Thanks for your answer I will try it later. Before there was no noise but it was not immediately when putting the compressor was a few months later when it started