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Discussion Starter #1
Can anyone offer advice on this please?

Current setup:

Optima Yellow top batter in the boot connected in parallel to the one in the front.

Kicker 1000 watt amp connected
Xcarlink connected
Ipod controller (Drive and Play) connected to the Xcarlink via the headphone socket in.

No audio whine from the CD player, the radio, the SD card inserted into the Xcarlink.

Only when the drive and play is running.

Tried connecting it in several ways:

Cigarette lighter connection
Power and Ignition bridged
Power direct from the battery and ignition from the cigarette lighter
Also tried earthing to the body as well as the lighter socket.

I get a whine regardless, albeit at high volume if it is an easy fix I'm happy to do it :D

Thanks in advance,
Gel
 

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53 Posts
I used to have a drive and play in my 3 series, i had exactly the same problem as you (tried several different grounds, hard wired the power etc) In the end i changed the head unit for an old sony one i had and this did the trick (i expect this isnt an option!). All i could put it down to was the quality of the aux in lead (which cost me 30 quid from bmw!). The noise is usually a common sign of a dodgy ground but seems to not be the case with this one.

I have a ground loop isolator you can try if you want me to post you it, that may reduce the noise a little. It sits inline on the 3.5mm jack from the drive and play to you're stereo.

Andy
 

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Premium Member
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324 Posts
Discussion Starter #5
Thanks for the offer Andy.

I think I sorted it this morning.

I bought a suppresor from Halfords and it didn't do anything until I accidentally left the negative unconnected and the HK found an earth via the Xcarlink.

No noise at all now thanks to the combination of the suppressor and rerouted earth.

Not ideal but it's as clear as a bell now.
 
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