Originally Posted by sniffer
Hi, thanks for your post but the interference is definitely not the fuel pump.
Some of it is what I assume is ignition related, rises and falls with the engine revs. Another large part of interference it is the water pump - the 335i has an electric water pump which must draw a lot of current. Then there is other interference from things like the Xenons when they first switch on, etc.
So, I have got all my old RCA cables down from the loft from long ago installs and I am not sure what to do. I cut the end off an RCA cable and there is not much wire there at all.
How would this then connect into the car speaker wires?
I have spent a while researching and understand that the car is now coded to Hi-Fi and therefore using "Balanced Outputs" so what to do?
Makkon forum member was selling a harness with all the rca connections made up. Think it connected between the quadralock a the back of the headunit. All you had to do then was run a quality set of rcas down the car. Worthwhile dropping him a pm he has his set up similiar to your system.
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