The last of the pieces (well the correct ones anyway) I ordered to fit the voltmeter arrived yesterday. Today I fitted it.
As you are aware from the above posts I wanted to use the aux output socket under the right hand panel but until Bigpie (thank you) helped out I was stuck as to what plug was required to connect to it. For your information it is a Sumitomo MT090-2B
I wired the voltmeter up, tested it direct to the battery to see what reading I got there, then plugged it in to the aux socket to make sure 1. it worked! 2. to check the reading.
The reading was the the same at the aux socket as it was at the battery!!!! Excellent, no loss.
The voltmeter itself read 0.2v lower than a multimeter at the battery, nothing to concern me.
Then came the nervy bit, cutting the panel. I checked behind for clearance, marked the spot & cut a hole.......it was a little on the small side so took a bit of filing & sandpaper to get it just right.
The spot I wanted to put it was very difficult to get into with my fat hands so required me to loosen the panel a little, just enough for a pair of long nosed pliers & a screwdriver to fit the plastic nut onto the meter & tighten it up. Not easy but managed it without having to remove the whole panel.
Two things to note the voltmeter in the second photo is not the one I used, I went for one with 2 X USB sockets built in. Second the battery voltage shown when engine not running is low, but I did have the ignition on for long periods when messing about....the battery is now on an overnight charge.
Some photos...............