Mercedes sprinter 208 cdi speedo and dash failure

I have nothing working no warning lights or functions have checked fuses , cleaned all fuse box connections same with cluster tried different cluster no joy it as if no power as all the lights and arms work on van and starts no issue just no mileage or anything Help its a 2001 901/902 fuse box is a000 540 23 50

I have nothing working no warning lights or functions have checked fuses , cleaned all fuse box connections same with cluster tried different cluster no joy it as if no power as all the lights and arms work on van and starts no issue just no mileage or anything Help
its a 2001 901/902 fuse box is a000 540 23 50

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