Nokia CK300 - problem going into amplified Porsche CDR22


Standard Member
Hi there,

Am hoping you have some advice.

I have Boxster which has a CDR22 head unit. (It is pre-facelift so is NOT the PCM / digital unit). The car has an amplifier fitted.

I have had fitted a Nokia CK300. The problem is the phone sound coming out of the speakers is VERY very low so for me to actually hear the phone conversation I have to turn the volume way up. Then when the phone call finishes I get blasted because the volume is set so high up.

There also appears to be some form of interference / background sound when I am on the phone with the volume turned up so loud. It sort of sounds like radio in the background.

Any suggestions?


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