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Which fuse goes to the radio in a 1989 4runner?

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Old 02-08-2009, 10:59 AM
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Which fuse goes to the radio in a 1989 4runner? Edit: bigger problem

I wiring up new speakers and head unit in my '89 4Runner, and I've hit a snag.

The rear speakers I have have integrated LEDs, so I ran those wires back to the head along with the speaker wires. I soldered the two LED power and ground wires into one power and one ground, then I prepared to solder them to the power leads going to the head unit(I hear LEDs don't draw much power). I cut away some insulation along the head's wires, then I held the LED power and ground wires to the exposed contacts. The LEDs light, everything's good. I wrap the tips of the LED wires around the bare spots in the head wire and recheck the LEDs. Not lighting. I check the current coming off the head's power wire: 0.00 volts.

I'm going on the assumption that somehow the pliers I used to wrap the LED wires around the power wires caused the power and ground wires to make contact and short. I'm looking for the fuse that goes to the radio, but none of the fuses in my truck are labeled. I have no clue which fuse to check/replace. Does anyone know which fuse it is, or possible other causes for my head power suddenly going dead? Thanks!

Last edited by Zelephant; 02-08-2009 at 05:30 PM.
Old 02-08-2009, 11:04 AM
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i think its the 15amp acc fuse its at the drivers kick panel

Last edited by Elton; 02-08-2009 at 11:06 AM.
Old 02-08-2009, 11:06 AM
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http://www.4crawler.com/4x4/4R_TechI...tml#Electrical
Old 02-08-2009, 11:14 AM
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Sorry that link, doesn't specify "radio" its the cigarette lighter one
Old 02-08-2009, 05:22 PM
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Thanks for the link, but now I have a bigger problem: the fuse is not blown. I can't understand why the power wire should suddenly go dead like that. I need help!
Old 02-09-2009, 08:52 AM
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Originally Posted by yota4runna
You probably reversed the leads on your LED between the time you tested them and the time you hooked them up. Remember, LEDs are polarity conscious-they only work in one direction.
Definitely not the case, I've checked and double checked the leads. Also, I measured the volts on the exposed power wire contact and it came out at 0.00v (yes, the truck was on). It's simply not getting power.
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