Alternator whine with new head unit on S3 with Bose

[JaimeCal]

Fitted an aftermarket head unit to my car, http://www.ebay.co.uk/itm/121444155398, everything works absolutely perfectly except an incredibly bad interference when the engine is turned on. Alternator whine and an occasional high pitch buzz. I have tried regrounding to no avail.

All i can think of is an issue with the fact that the Bose system is amped differently?

Anyone else had this issue?

 

[Sayam]

its the bose amp, it's rubbish and changing the head unit has probably lead to a difference in signal to noise ratio and the noise is because of that

 

[a3 black]

i got same head unit had the same problem you need a rca noise filter, fitted this to mine all done

http://www.ebay.co.uk/itm/281343835477?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT

 

[JaimeCal]

Absolute lad. Thanks a lot!

I'll let you know how it goes.

Cheers for the replies people.

 

[MrChris]

I'll let you know how it goes.

Hi, bit of a thread resurrection - but at least it's still the same year! Did these work for you?

I have tried just about everything on mine - so far settling with Ground Loop Isolators temporarily, but I would be interested to know if these did in fact solve the issue for you, and would be a good closure to the thread.

Cheers

 

[niallh]

Ive had to settle with ground loop isolators too, the item above is just a loop isolator for 2 sets of rca's.

 

[Bazzle]

I had a similar issue on 2 different headunits.
I tried re grounding, Min sucess.
GLI (which worked but cut bass.)

Ist one was fixed when I put tape around outside of din aerial connector so only centre pin was connected.
Could not fix 2nd unit... UNTIL I got a flat battery and had to swap it out.
Issue went