Question about wiring my gauges

[The Shape]

I am installing the kit that puts three gauges under the radio and I am installing a new CD deck at the same time. Here is what I am wondering. On the adapter wiring harness I purchased to go between my factory harness and my cd deck there is a illumination/dimmer wire that isn't used on the Pioneer CD player I am using. I am wondering if I tie into that wire will it power the lights in my gauges and allow them to dim with the dash lights using the dimmer switch. I have been discussing this with JT (hissin50) in PM's , but neither one of us is sure if the factor wiring as an illumination/dimmer wire that corresponds to the one on the adpater harness or not. Any idea?

 

[HISSIN50]

And James is talking about his '87 (for you wiring guys who look this stuff up).

 

[sgarlic]

Try it and see? What harm can it do?

 

[The Shape]

Try it and see? What harm can it do?

That's true. I did do some testing this morning with my test light. I found that the factory plug has a Light Blue/Red wire and an Orange/Black wire that both get power when the headlight switch is turned on and both dim the test light as I turn the dimmer switch.

 

[The Shape]

Worked great. Now I just need to get the lines for the mecanical temp. and oil press. run into the engine compartment. Winter sucks with no garage to work in!!!