This may help a few people wanting Amps for L322 Vogue

These are all of the DSP AMPs that 'should' work in our RR's!

Dont be fooled by the fact that externally they are identical and have identical connectors. I have been down this road.
Its much better to deal in absolutes rather than shoulds. Do you know for a fact which ones ARE compatible ?

They are all backwards compatible. The Phillips is an iffy one though as its the oldest (Pre 2000).

The others would just need coding at a dealer.

Waitey said:

The others would just need coding at a dealer.

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What does that mean ?

Each amp is coded to its Audio environment (speaker number, speaker position, certain volumes etc) These differ in all the models the amp was fitted to (5 Series, 7 series, X5, RangeRover etc..)

Also the amp can either be coded to be run by a Nav unit or a traditional headunit.

This is the main reason when swapping amps between cars people have they won't work/work very poorly.

The dealer can code the amp back to work in the Range Rover enviroment (Speaker set up and being run off a nav unit).

I'm not sure how much this costs though. I guess around £50.

Its common place in the US and Germany!

Ah, I see so effectively the amps are programmable then. If this is the case I should be able to access them with a Faultmate which has above dealer capability ?

I'm not sure how its accessible to be honest. I guess its through the diag port.

I guess its through the diag port.

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To clarify, it's via the BMW DS2 BUS connected to Pin 8 of the OBDII connector on which the instrument pack is also connected.
The instrument pack then transparently (Acting as a Gateway) relays diagnostic messages addressed to the AMP onto the I-BUS, on which the AMP (Along with other ECU's) is also connected. Replies return to the diagnostic tool by the opposite route.

Although the ECU's in use for systems on the pre 2005 L322 were derived from existing BMW ones, and they look and connect the same, and they may even have identical hardware inside, sadly in my experience, the Land Rover versions are not generally interchangeable with BMW ones. And re coding is certainly not typically a one fits all way to make them do so.

The dealer can code the amp back to work in the Range Rover enviroment

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As you may appreciate, i have rather more than a little knowledge and many years of hands on experience with the LR dealer equipment, its capabilities and how it works. I can therefore categorically tell you that unless the HW number, SW number and most importantly the Coding index number are within the TestBook / T4 database, it will not go near attempting coding an X5 or other BMW ECU.

There are even examples within LR compatible ECU's where the coding index is different and must not be crossed, such as the V11 and V12 Light check modules.

In the Faultmate, if a system is interchangeable with a BMW one, such as the park aid module is, we do provide all the relevant coding data for that ECU for all known applications
EG
https://www.blackbox-solutions.com/shop/help/SM056.html


I hope this helps

Like I said though it has been done in the US and Germany. The DSP2 units have proved to be backwards compatible. The un coded Lear unit share the same serial number for both the L322 and the X5. Same goes for the BM54 unit.