I have also been doing more work on the forward electrical system. Previously I fitted a five relay/fuse box for the cooling fans, low, high beam headlights and the headlight open and close motors.
I needed to add another two more relays to the system. One for the horn (the original horn relay/key buzzer have been removed) and one for the wiper door motor.
Instead of adding another five relay box to the system I pickup a Eaton VEC (vehicle electrical center) which is setup with eight relays and fuses. I got the standard model which has a common ground on pin 85 for all eight relays.
On my system I need to have the ground isolated on three of the relays (two for the ECU controlled cooling fans and one for the horn). Its was a easy task to open the box and cut the ground rails to isolate the first three relays. The ground for these three relays where then bridged to the unused track for pin 87a of each of these relays.
The VEC has two main power inputs, one each per four relays and fuses and uses Delphi 280 series connectors for the remaining inputs and outputs.
I am in the process of hiding as much of the wiring as possible so will possibly mount the unit down low behind the left inner fender.