Motorized Aerial Problems - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 01-20-2005, 05:01 AM
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Hi - I've just swapped a motorized aerial from one E30 to another. It worked fine on the first one, but wont do anything on the 2nd. However, I don't know exactly which wire is the one that controls the aerial. All the wires into the stereo are correct, all works as expected, apart from no aerial. When I wired it up, there was one (grey and red, I think) wire left over, I tested it with a multimeter to find the was no current coming from it, and then used it as the aerial wire. No joy.

Can I connect the aerial directly to the battery to check it still goes up and down ? I'm guessing that they have a pos. and neg. power leads, then one more that make or breaks the circuit depending on signal from the head unit ?
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#2 (permalink) Old 01-20-2005, 07:40 PM
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Quote:
Originally posted by charliefortune@Jan 20 2005, 04:01 AM
Hi - I've just swapped a motorized aerial from one E30 to another. It worked fine on the first one, but wont do anything on the 2nd. However, I don't know exactly which wire is the one that controls the aerial. All the wires into the stereo are correct, all works as expected, apart from no aerial. When I wired it up, there was one (grey and red, I think) wire left over, I tested it with a multimeter to find the was no current coming from it, and then used it as the aerial wire. No joy.

Can I connect the aerial directly to the battery to check it still goes up and down ? I'm guessing that they have a pos. and neg. power leads, then one more that make or breaks the circuit depending on signal from the head unit ?
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one of the wires goes up to your deck and its the accesory wire, which is the power antena i believe. and when you turn it on FM it goes up and if you listen to a cd it goes down, now im not sure if your talking about hte stock or aftermarket deck but im assuming aftermarket, i can't go check because i wrecked mine and just got a short black one from canadian tire for about 20$ and put that in cause its really short and skinnier and less tackey. so good luck with that, and check the radio manual if you still have it.

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