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Old 05-25-2012, 08:08 PM
ill duce ill duce is offline
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Default horn going off when trying to connect battery

SO I was trying to install a aftermarket headunit tonight and followed the directions. Before I started with it I disconnected the negative terminal like I do before doing anything electrical. I installed the headunit and went to connect the negative terminal and the horn/alarm keeps going off until I disconnect the battery again. Please help. I am a complete noob to the Ranger
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Old 05-25-2012, 08:09 PM
06RangerXLT 06RangerXLT is offline
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Default Re: horn going off when trying to connect battery

depending on year, there could be a anti-theft system in your stock radio.

that or ya just need to turn the ignition on as soon as you connect the battery. if you dont wanna make sound, disconnect the horn plug
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Old 05-25-2012, 08:19 PM
ill duce ill duce is offline
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Default Re: horn going off when trying to connect battery

It is a 2004 with apparently PATS as the truck will not start at all. The gauges turn on but the truck wont start.

Last edited by ill duce; 05-25-2012 at 08:46 PM.
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Old 05-25-2012, 09:49 PM
ill duce ill duce is offline
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Default Re: horn going off when trying to connect battery

NM. I finally got it to start.
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