Guinness

Finally got the BMW
Nov 29, 2006
4,421
1
Newcastle
Quick Question

Right the aerial booster that is needed to change a headunit from a stock one, The blue cable on that, what do I connect it to? Is it the blue cable from the car or the cable comming from the headunit.
 
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It needs a 12v supply (pref switched with the ignition)

If the new headunit came with a loom that you've swapped the red and yellow wires over (to keep the radio presets) just jam the blue wire into the connector on the yellow wire from the headunit, cover it over with the plastic sleeve and you're away :D
 
The blue one from the headunit will do as it should have power going to it...its basically a switched wire for electric aerials and amplifiers.