This looks pretty straightforward, using the Ebay fuse blocks and a copy of TP 30057/1 from www.volvowiringdiagrams.com.
To keep the same fuse numbering, a join has to be made from the the last 3 fuses of the first block, to the first
2 fuses of the second block (terminal [30], AKA main battery feed). Or a second connection can be made from those 2 fuses on the second block straight to the [30] connection point on the LHF wheel housing via a separate wire.
As you can see below -
[X] (accessories, interruptable) feeds fuses 1 to 3.
[15] (ignition on) is fed via the fuse 11/12/13 bus to fuse 4,
The stand-alone in-tank pump circuit is via fuse 5.
[30] is fed to fuses 6 to 10.
[15] is jump fed to fuse 4 on the hot side, and fed to 11, 12, and 13.
A stand-alone accessoryposition is availabe at fuse 14.
[58] (light power) is fed to fuses 15 and 16.
As that oddly-dressed Russian rodent says on those TV ads, "Simples!"
