Evening all

 

I wondered if anyone can help please.

 

I've fitted an aftermarket Plus center head unit and all is good except the poor radio signal.

 

So I've purchased a signal booster in the hope of fixing this.

 

My problem is which wire is switched live (accessory)

 

Red is 12v accessory as far as I can tell but it looks like it goes through the can bus. 

 

I don't want to connect this up and damage anything.

 

Can someone please confirm where the signal booster power wire should go ?

 

TIA