Will radio light dim?

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Sep 25, 2007 | 07:05 AM

gbsales

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Will radio light dim?

I have a 1999 F150 Crewcab Lariat. Can someone tell me if it has the capability to dim a third party radio if the headlights are turned on?

gbs

Sep 25, 2007 | 09:34 AM

KingRanchMan02

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From: Louisville, Kentucky

Hello gbsales, and welcome to FTE

Yes, there is a variable voltage output from the light circuit in the truck. The aftermarket radio is the deciding factor here. Dimming of the display requires an input on the radio for this function. Good luck!

Sep 25, 2007 | 11:02 AM

xjoedirt55x

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From: Cincinnati

by doing that, you are not going to rob the radio of it's power, it will just dim the lights, correct?

Sep 25, 2007 | 02:00 PM

LxMan1

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From: Louisville,Ky.

Correct. The aftermarket stereo must have a dimmer input wire or it will not work.

Sep 25, 2007 | 02:55 PM

ncranchero

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From: E.Lincoln County, NC

Quote:

Originally Posted by LxMan1

Correct. The aftermarket stereo must have a dimmer input wire or it will not work.

..... or just a separate "light" wire to the after market radio, right????

Sep 25, 2007 | 06:16 PM

gbsales

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I know the radio has a dimming feature. I think it's supposed to dim when the headlights come on but it doesn't. Before I complained to the installer I wanted to check first. Is the dimming you speak of controlled by turning on the lights or just from the dial on the dash?

Thanks.
gbs

Sep 26, 2007 | 10:25 AM

KingRanchMan02

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From: Louisville, Kentucky

Quote:

Originally Posted by gbsales

Both, the wire in question is light blue with a red stripe. This comes from the headlight switch and is a direct output of the variable control in the light switch. This voltage is supplied to the radio, EATC, ashtray lamp, dash lights, etc. that light up when the lights are turned on and are controlled with the variable control. Good luck!