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Installed new radio now HVAC lights don't work

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Old 03-20-2012, 09:30 PM   #1
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Default Installed new radio now HVAC lights don't work

I installed a Kenwood KIV BT-900 in my 1999 Trans Am. Now for some reason the HVAC bulbs no longer light up. At the same time I installed the stereo I unscrewed the HVAC in order to prepare to install LEDs in place of the stock bulbs, but got no further than unscrewing the two 7mm screws that hold it in place.
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Old 03-20-2012, 10:22 PM   #2
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Visual inspection of the wires back there can't hurt, might be the dimmer circuit
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Old 03-20-2012, 10:54 PM   #3
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I used an adapter to connect the Kenwood wiring harness to the factory wiring harness. It was easy to match up all the wires between the two harnesses except for one, a solid orange wire from the adapter. It is the only wire that does not have a duplicate on the Kenwood wiring harness. Could this wire (currently disconnected, because I don't know where to connect it too) be the problem? At first I didn't think it had anything to do with it because it was part of the stereo hookup but you mentioned a dimmer circuit, don't know if this is part of that circuit or not. If it is, which wire should I attempt to connect it too?
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Old 03-20-2012, 10:59 PM   #4
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no thats the dimmer wire for the head unit which you don't need so I doubt thats the issue

i meant check the HVAC wires and see if one maybe came loose or something, i doubt the problem is in the stereo's wiring if you just matched color to color...that would be real weird if it was
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Old 03-21-2012, 07:31 AM   #5
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Check the bulbs, they are probably burned out. They are small and fragile and the filaments could have broken if the panel got knocked around in your install. There are two and its hard to tell when only one is out. You may have had one gone before you even did your install.
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Old 03-21-2012, 05:58 PM   #6
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Well I use to have a 01 Honda I hard wired a pioneer ache p4300 dvd in to and it had a a wire for the dimmer and I wound up having to ground it or else none of my dash lights worked might try this again I know I'm talking bout a Honda and your talking bout a trans am but you might try that maby just a thought
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Old 03-21-2012, 10:41 PM   #7
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Quote:
Originally Posted by wssix99 View Post
Check the bulbs, they are probably burned out. They are small and fragile and the filaments could have broken if the panel got knocked around in your install. There are two and its hard to tell when only one is out. You may have had one gone before you even did your install.
Thanks everyone for your help, turns out this was the problem. I find that odd because they apparently both went out at the same time. I replaced both bulbs though with new LED bulbs and now they work just fine.
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Old 03-22-2012, 07:29 AM   #8
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Quote:
Originally Posted by Chief762x39 View Post
I find that odd because they apparently both went out at the same time.
One was probably burned out months ago. The two sockets communicate light well and its really difficult to notice when just one bulb is burned out.
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Old 04-16-2012, 07:34 PM   #9
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Where did you get the replacement bulbs?
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Old 04-16-2012, 09:40 PM   #10
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any and every parts store
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Old 04-16-2012, 09:40 PM
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