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1995-2002 Range Rover P38A
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Discussion Starter #1
First post, so be kind ...

Bit of a tale of woe here. I bought the P38 a month ago and found there was a loud crackle on the left channel of the sound system. Various people said it was likely to be a faulty DSP, so I got a s/h one from an eBay seller. I've fitted it and the crackle has now gone, but the CD isn't working, and there's nothing coming from the rear speakers and subwoofer. It looks like I have bought the wrong DSP - the original was a XQK10022340, and the one I bought was a XQK100210. The seller said the only difference was that the 210 would not run the satnav, but since I don't have satnav I thought it didn't matter. I now learn (from a different eBay seller) that the 210 is from the Discovery and will only run the radio and cassette, not the CD player. Trouble is, it's the CD player that I want most of all - I have no working cassettes and I don't often listen to the radio.


I need to return the incorrect unit, but the seller is 'away' so that might take a while. In the meantime, I can get the correct 340 unit, but it's going to cost around £400. I'm not sure if I want to throw that amount of money at it, to be honest. Might it be possible to have an audio specialist fit me a new head unit and wire it up to the door speakers and sub just like a normal installation? It's way beyond my capabilities, but surely someone could do this. If so, is it likely to cost more than a s/h DSP from eBay? I don't really need premium sound, just something I can play music on. A modern unit with USB/SD input but no CD player would be fine.


Any ideas, thoughts, guidance? Also, does anyone know of a good audio installer in West Wales (UK) who might be able to help? Every one I have called so far has heard the words Range Rover and has then made an excuse and left :)


Sorry for the long post.
 

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If you could do it yourself (or find someone friendly locally that can do it for you) you'd be looking at £100-150 for a decent quality head unit and some wiring. The DSP system all runs through the amp in the back so all wiring to the speakers are run from there. There's only a left and right channel coming from the head unit (front/rear fading is dealt with in the amp itself) so you'd need to run left and right rear channels and sub from the head unit to the back. Then it is simply a case of finding the left front channel wires from the head unit and linking those to the wires to the left front speakers, right front from head unit linked to wires to right front speakers and so on. Fiddly and time consuming but not difficult. There's a sticky on this forum that gives the colour codes for each wire so you can link the correct ones.
 

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1995-2002 Range Rover P38A
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6 Posts
Discussion Starter #3
Thanks for the reply. I would expect to spend about £100 on a head unit, and from today's experience (fiddliest job ever!) I can imagine it taking someone a lot of time to do all that. But if it came to less than the £400-odd I will have to pay for a s/h DSP, it would be worth it - cheaper and hopefully more robust. A slight loss of sound quality would be no big deal. At least you have confirmed it is possible, and I can have a think. Much appreciated.
 

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1995-2002 Range Rover P38A
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Discussion Starter #4
Error in first post, in case anyone is using this thread for information:

Original DSP was XQK100340 (not XQK10022340)
New/incorrect DSP was
XQK100210.

Sorry, didn't proof-read my post.
 

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1995-2002 Range Rover P38A
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As a thought, have you considered that simply by removing and replacing the amp, you have possibly cleaned and re seated the connector?
I would try re installing the original amp. No cost, and it may work.
Also, you may want to remove the left and right kick panels and inspect the plugs you will find there for corrosion. The DSP system in my Borrego is intermittently crackling as well, but only when it rains, so I suspect a corroded connection, but have not gotten too far into it yet.
It is fine at the moment, but as soon as it plays up again, I will troubleshoot.
 

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LEGACY VENDOR
1995-2002 Range Rover P38A
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The DSP amp should have nothing to do with the CD changer.... The CD changer feeds into the head unit, rather than the DSP amp.

As others have said though, £400 for a replacement XQK100340 is a bit ridiculous, especially if you don't have the sat nav.

I originally wired in an aftermarket unit and used the amp in that to run the door speakers, which sounded OK - but as theres no filtering of frequencies, you get full range to every speaker. I built a passive crossover unit to do some filtering on mine, but even then it still wasn't as good as having the amplified system.

I do 'DSP replacement' amp boards which effectively have 4x P38 door amps on them, and that then gets wired in place of the Nav system.. I still need to build one for another owner at some point, but have been away a lot for work lately (in fact I'm still away at the moment!), which effectively does the same thing.

I am also looking into the possibility (when I get time....) of modifying the XQK100210 so it will then drive all the door speakers, and the only 'adjustment' to the stock wiring would be adding the extra wires for the rear left/right feeds from the head unit. You could then use that with an aftermarket head unit and use either balancing transformers on the line output level, or attenuator circuits on the amplified outputs of any head unit.

There are plenty of ways of making it decent again without spending silly money - but a lot of the plans I have for these things is down to time - which I'm short of at the moment!

Marty
 

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1995-2002 Range Rover P38A
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Discussion Starter #7
As a thought, have you considered that simply by removing and replacing the amp, you have possibly cleaned and re seated the connector?
I would try re installing the original amp. No cost, and it may work.
Good thinking, Batman. Will give it a go.

The DSP amp should have nothing to do with the CD changer.... The CD changer feeds into the head unit, rather than the DSP amp.
Hmmm. Will have a think about this.

Thanks to both.
 

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1995-2002 Range Rover P38A
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I have the same disco amp in my 02 in Hawaii, as I went through 3 DSP amps in 4 years. Just kept dying.....The Disco amp will not drive the rears or the subs, but I believe the changer still works. I usually have the input switched to Grom tho, so don't' recall.
I REALLY miss the old DSP amp!
 

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1995-2002 Range Rover P38A
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Discussion Starter #9
Thanks Bolt, but the 'old' amp is still crackling. Never mind, worth a try. I now have a 100340 on order. Hopefully this will sort things out.
 

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1995-2002 Range Rover P38A
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Discussion Starter #10
Happy endings! I bit the bullet and bought the correct amp (XQK100340) and it arrived today. Everything works and the crackle from the left channel has gone. I have radio and CD, and all the DSP functions. It's cost me a bit, but worth it to have the car working as it should. Many thanks to everyone for the advice and info.
 
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