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Old 06-27-2013, 02:35 PM   #1
plum70crazy's Avatar
Join Date: Jun 2013
Location: Michigan
Posts: 45
Unhappy Help with Stereo Install

Hey all,
I just installed my buddies radio in my 1994 YJ. Everything was hooked up, there is a relay for the keyed hot, and the constant hot has two previous fuses in line.

Here is what happened. Everything was working fine, turned the radio up, still fine. Turned up more, blew the 1A inline fuse for the yellow hot lead. Wondering if the stereo is over powered for the line rating on the yellow lead.

Should I be concerned, or replace the fuse and keep the volume down?

Going to get more 1A fuses now.

Any help would be appreciated.

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Old 06-27-2013, 03:34 PM   #2
Bad_Dog's Avatar
Join Date: Jan 2013
Location: Pleasantville, NY
Posts: 183
Why would you need two fuses for the constant?

Where is the hot coming from - directly from the battery? If so, what's the gauge? One amp is a bit low.

OlllllO 2013 Wrangler Sahara Unlimited
[]lllll[] 1991 Wrangler Renegade, 4.0L Auto (Retired 2013)
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Old 06-27-2013, 04:17 PM   #3
plum70crazy's Avatar
Join Date: Jun 2013
Location: Michigan
Posts: 45
I thought that was VERY strange as well. I called my buddy and he said that no fuse is needed at all in the constant as there is an incorporated fuse at the rear of the head unit. I am going to see him tomorrow afternoon.
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Old 06-28-2013, 03:27 PM   #4
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Join Date: Jul 2012
Location: Littleton, CO
Posts: 2,253
Depends on how/where its wired.

If the radio is bypassing the stock wiring system and pulling power straight from the battery or an un-fused lead... then you need the fuse and make sure its rated properly for the radio. I would avoid that if possible. The higher the volume, the more power it will suck in in order for it to power the speakers since you arent using an amp. If you used an amp and RCA outputs, it doesnt pull much juice... the amp would and it would have its own power line with inline fuse.

One thing you can do is replace the fuse, grab a volt meter and check the power going to the unit as you turn up the volume and see where it blows. Trace the wire as well or pick a better source of power. I dont know a single jeep (aside from the olllldddd ones) that doesnt have a dedicated radio power line.

Also... should only have 1 fuse, not 2.
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