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Hooked power up backwords for like 2 secs an popped fuse in radio harness got new one wont come on now

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My vx-3200v does not power upturn on. Fuse blows instantly. I suspect input diode, don't have the service manual. Ideas?

Are you using the factory wiring harness? If so, there are 2 fuses. If not, it is easy and common to have the red + and black - wires in the wrong order. Really! Even after 20 years of working on them, it happens. Other than that, if you have another harness, or a couple of wires, hook them up when trying to program. Make certain the power supply can handle the amperage draw. I used a 5 amp power supply once, blew a fuse on the radio, then the power supply. Then I'd start looking at input diodes.

Feb 09, 2015 | Vertex VX-3200 VHF Mobile Radio,...

1 Answer

I have a kenwood kdc-mp335 and when hooking it up i get no power to the head unit what could this be

is this a new install.
if yes, buy the adapter harness, all auto stores sell this.
makes connections easy and has ,"instructions"
the red wire to the new head is red, and most go to the correct
harness wire, for radio power, on the geo that is RADIO fuse.
that goes to ignition on , connection. so fuse must be hot.
and key on. and radio grounded (black) to play
your car is a toyota corolla in snake skins. (badged)

Jan 27, 2015 | 1991 Geo Prizm

1 Answer

Want to hook up radio. Bought correct harness. NO power to radio that works. Checked fuse and is ok. What next?

the wiring could be different,, hang on a sec ... here, check this link for the wiring colors and what they go to,,

Aug 26, 2011 | 1997 Toyota Corolla

1 Answer

Pioneer p 4300 in 1994 ford E250 not working. I didn't know I was supposed to disconnect the battery when hooking up the pioneer harness. I was planning on splicing in the pioneer harness so while I...

Have you tested the hot lead going from the car's harness to the radio with a multimeter, to see if you're getting voltage? You may have either popped the fuse in the fuse box, or may have shorted either the car harness or the head unit harness.

Aug 09, 2011 | Pioneer DEH-P4300 CD Player

1 Answer

Stereo won't turn on

It could be fried, but some of these stereo's have fuses on the back of the radio. Example: I have a fuse under the dash and 2 on the radio. Take the radio out and check the fuses, then check your radio harness for power. If you have power coming through your harness, then most likely the radio is fried.

Feb 24, 2010 | 2001 Audi A6

1 Answer

I am trying to hook up an aftermarket stereo to my 2008 mitsubishi lancer. the wiring harnesses (metra 70-7005 and mito-02) that i have do not appear to line up with the mitsubishi wiring. when turned on,...

Power to most radios is the red wire and ground is black. Do not mix up the two and make sure your plugs match "red for red" and "black to black" (the ground some times will also be green). If not you can blow a fuse in your box which you might need to check. If you have a meter you can check your car harness plug to see if you have 12 volts on your red coming out. If not make sure your fuse is good and you have the power on in the car (key turned backwards on most cars will power the harness if not turn if forward like you are going to crank it. If you are not sure the radio is good, you can pop the hood of your car and hook up the red wire from the radio to positive side of the battery cable and the black to the ground side of the battery cable and you should be able to turn the radio on. If you see it power up, you will know your problem is in your harness. Hope this helps

Oct 02, 2009 | 2008 Mitsubishi Lancer

1 Answer

My radio wont turn on

Use a voltmeter or a circuit tester. 2-5 bucks anywhere worldwide.

Test the power wire from the radios wire harness for power.
If It shows power then you fried your radio.
If It shows no power from the Harness. Hopefully you just cooked the radio harness. Splice the power wire off of the radio harness and test It for power cross your fingers thats as deep as you have to go Into electrical system.
Test the radio power wire that goes to your radios harness for electric current.
When you find the power the garbage will present Itself.

Before any of the above check all of your fuses.

One thing Is for sure you def blew something.

Good Luck

Mar 22, 2009 | 1996 Ford Explorer

1 Answer


Your best bet on that one is to go to a place that sells car audio systems or even some autoparts retailers have them,and get the proper adapter harness already made up. A few more dollars but, a whole lot less headaches.

Mar 06, 2009 | 2002 Dodge Caravan

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