L322 Bizarre amp issue

Hi everyone, hope you're all good.

First time posting, so I apologise if I've missed anything I need to do. Wondering if anyone has heard of or seen this issue before? I've searched many forums, but it doesn't seem this has been covered specifically.

I have a 2003 Range Rover Vogue L322, and recently the radio stopped working. When the car was turned on, 9 beeps sounded that I hadn't heard before. Low and behold, water had got into the left area in the boot where the amp is. I disconnected everything, cleaned and dried it all, still didn't work. Took everything to bits, cleaned all the parts with flux cleaner/remover, put it all back together, still the same beeping and no radio. It seemed like the radio and computer etc were still working, so narrowed the issues down to the amp.

I found a replacement amp on eBay for quite cheap so thought I'd try it out: https://www.ebay.co.uk/itm/bmw-e38-...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649.

Didn't work, but the beeps stopped. I noticed when unplugging the 18 pin connector on the amp with the radio still on, there was music for a second!

After swapping around some wires in the 18 pin connector, I managed to get it to work. Sound in all the speakers, bass etc, all back to normal. Still works when turning the radio on and off.

Now, the issue. If you turn the car off and back on, no sound comes from the speakers again (although you can hear speaker 'static' if you turn them up full volume). If you unplug the 18 pin connector and put it back in, it works again.

Obviously I don't want to to that every time I turn the car on, any ideas for a potential fix?

Thanks,
James

Swapping the wires around does not sound like a good idea. all this stuff is interconnected via a bus system, sounds like either your replacement amp is faulty or there is corrosion in connectors.

I would speak to Baris at carphonics he is a very nice guy who sorted out my amp issues with a extremely quick service.

Unplugged my amp the plug was green and corroded.

Datatek said:

Swapping the wires around does not sound like a good idea. all this stuff is interconnected via a bus system, sounds like either your replacement amp is faulty or there is corrosion in connectors.

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Yeah, I thought that but then when the wires are switched around it works perfectly, just the problem of it not being on when you restart the car

Can't see any corrosion in the connectors now after cleaning, and surely the amp wouldn't work at all if it was faulty?

Thanks,
James

shunter v8 said:

I would speak to Baris at carphonics he is a very nice guy who sorted out my amp issues with a extremely quick service.

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Cool, they're super far away though, reckon they'd help over the phone?

Thanks,
James

bitnix said:

Unplugged my amp the plug was green and corroded.

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Yeah mine was too, think it killed the original amp. After cleaning the connectors this new amp works perfectly, just the issue of it not coming on when the car is restarted.

Forgot to say, even when there is no sound, the DSP menu on the head unit is still accessible, so it IS connected.

Thanks,
James

I spoke to Baris over the phone explained the symptoms and he thought it sounded like a fault on the BM54 module which I removed and posted to him and it was back in 3 days to the Isle of Man and has worked perfectly ever since, i would definitely call him.

shunter v8 said:

I spoke to Baris over the phone explained the symptoms and he thought it sounded like a fault on the BM54 module which I removed and posted to him and it was back in 3 days to the Isle of Man and has worked perfectly ever since, i would definitely call him.

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Cool, thanks, appreciate it. Could you share his website/email please and i'll take a look?

I've been reading, and the new amp might need re-coding as it's an amp from a BMW. Ordered a cable, and got everything set up to connect to it so will see how it goes!

Cheers,
James

Sorry James I have had a few family issues recently and not been on, i hope you are sorted but here it is www.carphonics.co.uk i found him very helpful and very fast in returning the unit it has worked perfectly since.

Not had any luck here. Bought this cable off eBay to see if I could recode the DSP using the details below, but couldn't get it to connect to Navcoder or NCS Expert. Not sure if anyone has ever had any luck connecting to an L322 with either of those? Followed loads of different instructions and just wouldn't connect, even though it would be recognised fine by the BMW INPA application.

https://www.ebay.co.uk/itm/USB-OBD-...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649


Think i'll try buy a replacement amp from the same car instead of a BMW one, surely that will work

Could I hell get this to work, ended up biting the bullet and shelling out for a replacement amp pulled from a Land Rover instead for about £160. Works a treat.