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17th April 2020, 13:21 | #11 | |
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Rover 75 Saloon Join Date: Feb 2015
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17th April 2020, 17:12 | #12 | |
Posted a thing or two
Rover 75 Saloon Join Date: Apr 2019
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I've got no amp connected (because I broke it) and the radio definitely crackles without it. https://www.the75andztclub.co.uk/for...d.php?t=304211 |
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18th April 2020, 07:16 | #13 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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The aerial systems are very confusing. On my driver's side D post I have a module described as "filter, screen aerial" part no. XUE 100 001. I also have two chokes in the wiring from the screen elements to earth on the passenger side D post. These parts appear to be the interference suppression for the heated rear window. I wouldn't assume that changing the aerial "amplifier" module will be the answer. Check that the relevant earths are making good electrical contact first. If your original radio has been replaced by an aftermarket unit, check the connections there too. Simon
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18th April 2020, 08:25 | #14 |
Precise
Rover 75 Tourer 2.5KV6 Connoisseur SE Join Date: Mar 2013
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I have to agree with Simon on this last point, aftermarket units do not provide the +12V DC for the amplifier, you have to deliberatly provide it.
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18th April 2020, 12:37 | #15 | |
Posted a thing or two
Rover 75 Saloon Join Date: Apr 2019
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The largest connector is the power supply in from the engine bay fusebox, the other two supply power to the upper and lower elements of the HRW which are earthed by the two black wires on the opposite end of the screen (LH D post - see 1st pic post 12). The aerial filter removes any electrical interference to the ICE system caused by HRW operation. (Source RAVE 86-7-22) So to answer Damian's question, a faulty aerial filter (XUE 100 001) would cause radio crackle when the HRW is on. A faulty aerial amplifier (XUC100741 or other) would cause radio crackle regardless of what the HRW is doing. |
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21st May 2020, 09:07 | #16 | |
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