Blue tooth trouble with Iphone

[Chugoa]

Hey again,

When I bought my VW Golt 90TSI we optioned the Fiscon blue tooth. Back in 09 we had Nokia phones and all was great. The blue tooth worked a treat. Then went to Iphone 3 no issues. Now with Iphone 4 and the bloody thing won't work properly . The Menu and everything works fine except when I'm in a call the person receiving my call hears lots of noise ect.

Has anyone experienced this and actually sorted it out

Any help would be greatly appreciated

Chugoa

[Chugoa]

I'll close this discussion off and post it in the audio electronics section apologies.