P38A Radio produces a high pitched tone - is there a cure?

The radio on my P38 MY2000 Autobiography/Petrol/Auto produces an irritating high-pitched tone which is present whether tuned to radio stations or in CD mode. The radio station or CD can be heard - but with the high-pitched tone overlaid...

Anyone experienced this? Any ideas about the cause? Is there a possible cure - short of replacing the radio unit?

TIA

My lad had a similar thing to this on the rear door of his 38', the connector blocks behind the footwell in the passenger side had corroded. After cutting them out and soldering the wires it cured the noise and stopped his suspension freaking out as well. If you haven't done them yet, do both sets in both foot wells.

I have a bit of a whine from the radio in my 99 as well. Don't think I notice it if I turn up the volume. Tried a capacitor from + post to ground in case alternator had some AC leaking out but did not help. Maybe wrong value. Not tried anything else.

Left or right side, or both ?

+1 on the connectors in either left or right footwell. The feeds to the amplifiers are balance pairs, so if one wire fails you still get audio, but also interference from ignition, alternator, etc.

pwood999 said:

Left or right side, or both ?

+1 on the connectors in either left or right footwell. The feeds to the amplifiers are balance pairs, so if one wire fails you still get audio, but also interference from ignition, alternator, etc.

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Seems like it's both sides. Sorry, didn't understand your comment about "+1 on the connectors in either left of right footwell"...

Rollover said:

Seems like it's both sides. Sorry, didn't understand your comment about "+1 on the connectors in either left of right footwell"...

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He means he agrees with the other fellow that they should be checked as described. I will have to do that as well.

Gord Wedman said:

He means he agrees with the other fellow that they should be checked as described. I will have to do that as well.

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+1.

Mark Piercy said:

+1.

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+2

tomcat59alan said:

+2

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+3

Mark Piercy said:

+3

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+4

Rubberknees said:

+4

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No show without Punch.

tomcat59alan said:

No show without Punch.

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Don't forget Judy

Rubberknees said:

Don't forget Judy

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That's @Mark Piercy

tomcat59alan said:

That's @Mark Piercy

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Soon get side tracked from the topic don't we

Rubberknees said:

Soon get side tracked from the topic don't we

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Oh yes., keeps us sane.

tomcat59alan said:

Oh yes., keeps us sane.

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Especially on a wet bank holiday Oops most bank holidays are wet though come to think of it

Rubberknees said:

Especially on a wet bank holiday Oops most bank holidays are wet though come to think of it

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Not ère mate

tomcat59alan said:

That's @Mark Piercy

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What have I told about saying things like that on the open forum.... Jesus wept...

Mark Piercy said:

What have I told about saying things like that on the open forum.... Jesus wept...
View attachment 237399

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Sorry Judy,I keep forgetting.

Mark Piercy said:

Not ère mate

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There's always one isn't there