Need A 12v Light Switched Wire

[frostyflax17]

Don't have hte bentley here with me, and i'm trying to hook up my plasma guages, read through the write up but it doesn't say which wires i could hook it up to, just a 12v wire is needed.

i want to hook it up so the guages light up only when the lights are on,

any help on which wire i should be splicing into?

it's a 1990 coupe 7a

[Tonks4x4]

Take a look on S2Central.net for all of the S2 wiring diagrams...

http://www.s2central.net/

[Tonks4x4]

gr/ro wire...

Grey/Red either from main dash wiring or from Aux gauge wiring.

[frostyflax17]

thank you sir, i looked on s2central, i musta missed the proper diagram

[frostyflax17]

on the white plug for the guage cluster, there's a grey wire with red stripe.

i'm guessing that's the one you're talking about.

one of the guys on motorgeek also said the grey/black next to the 276 relay

[frostyflax17]

that one didn't work....

maybe the wirings messed up somewhere on harness for the guages?