No Power to receiver

[lightning2000]

I've installed quite a few head units along with amps, subs, components, etc and have never had this problem. Unit just did not cut on one day after putting the face plate back on. Has worked great for a year and a half and just stopped working. I checked all fuses and connections and all are good. I even replaced all fuses just to make sure. I took the receiver and connected the 12 volt and acc wires to positive battery terminal and negative wire to neg terminal and the unit cuts on so I know I'm not getting power through to the head unit itself. I have not checked to see if it's not getting 12v or acc but will do tomorrow.

My question is. If it's not getting either/ or then what needs to be done since all fuses are fine? Harness looks good as well and have no issues with anything else in the car. The car is a 97 honda accord.

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[shizzzon 10+ year member]

it comes on when you wire direct to batt but not through the wire harness?

Do you use separate ground wire for that HU? ground somewhere else and see if it works.

You say that you checked the fuses so that would mean both the main power line and ignition line.

next thing i would test is run a power line from the stereo direct to the batt, continue to use the ignition wire in the harness to the stereo and ground it somewhere in the car.

Turn the key and see if it comes one, if it doesn't, there is something wrong with the ignition wire.

 

[lightning2000]

Found what the problem is. 15 amp fuse under the hood that is labeled radio/ cigar. keeps blowing. I had the radio working fine when i installed it with a new fuse but when I plugged the cigarette lighter back up it blew again. I'm yet to test if it's just the cigarette lighter that is the problem or if something in the wiring is not ok so that it can support the two combined anymore. Obviously there's a short somewhere, just not sure where to start looking.

 

[DD_Dave 10+ year member]

try a 40 amp in it...if that blows theres a bad problem...usually afternarket radios draw more power than stock...at one time Alpine had a radio you had to wire to the battery for the power..

 

[SethPhillips 5,000+ posts]

check ur cig lighter. sometimes it gets something inside it and short's out that circuit. i had one car come in with a bobby pin grounding out the cig lighter. pulled it out, replaced fuse and everything worked fine.