the Question is whats “blown” so in what way. wiring and 12v supply ok? but no output.
The item maybe the same if the electrical pin layout is identical to other amps used in disco sport or other Land Rovers is a start. But with not knowing the exact specifications which the part numbers may tell us via a manufacturer specs sheet its taking a gamble, the last two letters could just the vehicles or amp manufacturers code, model year code much the same unfortunately it is not a British manufactured item so getting info on it could be difficult.
If buying on eBay see if the seller will accept a return if not suitable.
Anyway as for repair, if the amp has disintegrated itself, as soon a I Google the pt number, up came a repairer of amps for around £250.
Having it repaired is a good option as when its placed on a test rig and with a good technician and a scope, not only will the faulty component be identified but others showing as a bit iffy, so new possibly update components are fitted.
I had ‘Land Rover experience‘ in the past with a ECU being on Back Order non in the UK LR dealers or Solihull had one
Fortunately being British I took it up to Lucas in Lichfield for repair who did it while I waited if a couple of hours, handy as it was lunch time and being near Burton upon Trent
Few iffy parts replace with new and updated items is what happened to my Lucas ECU on my visit.