When you wire the 7pin in you don't unwire the original 12pin, so it's still operational.
Printable View
I fitted one of each to my 110
12N 7-Pin -
https://www.aulro.com/afvb/images/im...014/12/802.jpg
NATO 12-Pin -
https://www.aulro.com/afvb/images/im...014/12/803.jpg
On a pre-TD5 Defender, it's easy to wire-in both sockets - as, all the connections are made on Lucas 3/16" bullets, inside the vehicle, behind the R/H rear lamp cover.
Paul.
1989 Arles Blue 2.5TD 110 Hardtop
1999 Epsom Green Discovery II 4.0 V8i 'XS'
https://www.aulro.com/afvb/images/im...016/05/756.jpg
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