Jofaur86:
I'm not saying you don't know what you are talking about, but I'm confused why you posed a wiring diagram of a HL 5.3 system? The Taigen v3 has a completely different wiring diagram than the HL 5.3 version you posted. I'm sure the BB diagram is probably correct if this is a HL Sherman converted to Taigen electronics, but I'm not sure what tank he has (whether it is Taigen or a HL Sherman). We know Taigen doesn't have both BB and IR on the same tank. Their tanks are either sold as IR or BB, but not both like the newer HL. The Taigen V3 doesn't have a specific cannon LED slot that is separate from the high intensity slot like the HL v6 or v7 boards. I'm not sure what the voltage is that comes out of the Taigen LED port. I think that is the big question here. If it puts out too much the LED will need to have a resistor on it to limit current. I've seen a lot of posts adding the high intensity to all kinds of boards, but can't find any fitting a standard LED to a Taigen V3.
To the OP:
I know you have a Taigen V3 in the tank, but is the tank an old Heng Long 5.3, a Heng Long v6 or v7 tank, a Taigen IR, or a Taigen BB Sherman? The wiring can be different depending on what tank you have.