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Add a fuse question------

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Old Sep 14, 2012 | 03:55 PM
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Add a fuse question------

Hi & thank you in advance......

I have decided to add aux back-up lights.....everything is mounted & wired and includes 2- 55 watt lights, 40 amp relay. It is the objective to have the relay kick the lights on when I place the truck in reverse......the problem.....

I thought it would be easiest to use a add-a-fuse (AAF) adapter and plug directly into an unused circuit.....of which fuse #10 (a 10 amp) looked good...however, i cannot seem to pull power out of this...now the the AAF has two spots parallel to each other for a fuse to be added.....of which I have tried both locations....with no success

a couple of questions- ......with a AAF does it matter which position the fuse should go in?
secondly, are AAF's known for giving problems and is there another power source solution that is better or recommended?. I would prefer a switched source (personal thing)
When listed on the fuse box panel as "unused", I am assuming this still has power going to it....or am I wrong?

....oh yes, I soldered every connection, heat shrink wrapped and electrical taped everything.
 
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Old Sep 14, 2012 | 08:47 PM
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I have used add a fuses on 3 different trucks to obtain a switched source for an aftermarket sat radio. I cannot comment on the unused slots, but I do know that it doesnt matter which way the fuse sits in either the slot on the block or add a fuse itself.
If its for reverse lights, why not try to tap into the fuse for the factory reverse lights? That way they come on automatically without further thought when you place the truck in reverse...
 
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Old Sep 15, 2012 | 12:49 PM
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Originally Posted by bigdaddyII
I have used add a fuses on 3 different trucks to obtain a switched source for an aftermarket sat radio. I cannot comment on the unused slots, but I do know that it doesnt matter which way the fuse sits in either the slot on the block or add a fuse itself.
If its for reverse lights, why not try to tap into the fuse for the factory reverse lights? That way they come on automatically without further thought when you place the truck in reverse...
Good question....way too much load for the existing circuit.......these 2 55 watt lights pull a total of 9 amps.....way too much to add on a 20 amp circuit. We are using the circuit to trigger the relay, but the power source must be separate.
 
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