Retrofitting clock with water gauge

[kzj90nz]

Hi all,

I'm using the plastic mounts of the analogue clock to install a digital water temp gauge - the fit is perfect!

In terms of wiring, could I use the original clock wiring to power the digital gauge?

On the back of the clock it has the following above the plug from left to right...

LL (+)
E (-)
B (+)

I'll post some pics - maybe someone can decipher this for me? I'm guessing one is ACC / ignition?

 

[kzj90nz]

Ended up tapping into ciggie lighter and using the negative wire off the back of the clock. Great mod if someone else wants to give it a go!