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I have an old Valentine One that has been passed on for 3 cars now (BMW 3 Series, Mazda 6, and now the Malibu LTZ). For both previous cars I hard wired it into the header unit by the moonroof switch/front reading lights, so that it automatically turned on when the ignition was on and automatically turned off as well when the car was turned off. With suction cups it allows you to place the radar detector right up near the top of the windshield near the rear view mirror with hardly ANY cords, there is just one tiny cord that goes into the header behind the trim. It is very clean.

However for both previous installs someone had already done it and documented it online with photos, so you knew how to do it without cutting the wrong wire, etc.

Is anyone aware of anyone that has done this on a Malibu with sunroof? Looking for step by step instructions.... something like this (but this is for a BMW):

http://m3.madrussian.net/diy_valentine_v1.shtml
 

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I have an escort 8500 and have tried with both the rear view mirror 12v line, and the home link 12v line with no success at all. If you can find someone who has done it, please post it up. I might try again sometime soon, but my soldering iron has broken, so I cant really do anything right now =/.
 

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I tap into the map lights on all my cars, but I'm guessing bu's dont have that. You can always tap into the cig lighter (behind it) then run the thin wire behind the A pillar.
 

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I tap into the map lights on all my cars, but I'm guessing bu's dont have that. You can always tap into the cig lighter (behind it) then run the thin wire behind the A pillar.
Except according to the manual the cig lighter is always hot even when the car is off.... this is not what I want I want switched on when the key is on.
 

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Except according to the manual the cig lighter is always hot even when the car is off.... this is not what I want I want switched on when the key is on.
I know for certain things on the grand am I just ran the wire down to the fuse panel and grounded the negative and put the positive in with the fuse. I would say put it with a fuse that only turns on when your turn the car on. Don't know if that'll help/work for you, but it's a suggestion. :) Otherwise you could also tap into your fog light switch or the dimmer switch.
 

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I've heard they make drop in fuses that you can tap into right on top to get a switched hot line, then just ground anywhere that works for you.
 

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I used an add a tap like I do when ever I add anything to my car.

I am surprised with the lack of information/pictures for those that are not all that handy, I have never been on a board with such limited information and I used to own a 2001 N body. Man have things changed.
 

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Except according to the manual the cig lighter is always hot even when the car is off.... this is not what I want I want switched on when the key is on.
Exactly. Its ALWAYS hot. Which is very annoying.

Im pretty sure you can tap into the dimmer switch and it would be fine.
 

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I did not read through everyone's posts so I don't know what has been covered and what has not. You can get a straight wire at Best Buy which is specifically for this. It should have the correct fitting or a universal fitting set.

Run your wire and then draw it down to the interior fuse panel. Find an ignition controlled fuse. Radio, Windows, ect. Then you're done. It's very simple. You could even possibly use a spare fuse, but it must be ignition controlled. The other wire is the ground. Just ground it to the body. If there is a bolt that has paint, scratch off the paint so it gets a good contact.

It's extremely simple. The hardest part is running the wire. In fact, the frame around the fuse panel should be grounded. Use one of the bolts. The frame for the dash will be grounded as well.

So get the wiring set from Best Buy. Run your wire down to your interior fuse box. Select from the following an ignition controlled fuse. Stick one of the wires with the prongs into the fuse slot and place the fuse over it (of choose an unused position). Then take the other wire and find a grounded bolt (if you rub it on the bolt it should spark). Then remove the bolt. Remove paint from that part of the frame (neatly so it won't show) then screw the bolt back in on top of the prongs from the wire. Or if the bolt is too big, you can strip the wire and wrap it around the bolt.

They also make these for those without the standard 12v fittings.



This is more of what I was talking about, but either way it's the same install process. As you can see the little "prongs".
 
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