Anyone know of a good point to get wiring through to the engine bay please.

Under the engine's air filter (it must be took off first) you'll see many cables going through the pannel into the cabin.Between those cables you'll be able to stick another one,that is the official way,where authorized electricians will use for alarms,subwoofers,or other devices.

But is another way more used on the forum ,near the polen filter under the wipers is a plug,and you can go through that with the cable.

I'll use the first way

^^^^^ what he said ^^^^^

I managed to get 2 x 4 gauge amp cables through so there is plenty of room, lifting relay box up and out on bulkhead also helps with access to route cables then can be put back

Thanks, I will have a look tomorrow