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C.Brown
Dodge Dakota
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11/15/2003
14:32:39
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 Subject: fuses
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recently installed pioneer deh-p3500.if volume is cranked past 50% it blows 5 amp fuse in engine compartment.this fuse also powers interior light etc. stereo is rated at 10 amps. can i safely uprate this fuse to 10 amps? (95 dakota )
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Jim Z
GenI
11/15/2003
18:55:09
|  RE: fuses
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"can i safely uprate this fuse to 10 amps? (95 dakota )"
No. Most high-power head units on the market now recommend that you connect the battery power wire from the radio (usually yellow) directly to the battery for exactly this reason. This is what I'd suggest you do.
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blind tech
Dodge Dakota
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11/16/2003
04:26:26
| RE: fuses
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i thought the red powered the deck and the yellow was memory, or am i con-fused,?
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Jim Z
GenI
11/16/2003
22:53:53
| RE: fuses
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"i thought the red powered the deck and the yellow was memory, or am i con-fused,?"
Sort of. The red wire is "ACC", which is what signals the radio to turn on. The yellow is "BATT", which does two things: maintains the memory, and provides the main current feed to the radio. So, all of the power that the amplifier section is using gets drawn through the yellow wire.
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92Dakota
Dodge Dakota
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11/18/2003
01:15:36
| RE: fuses
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Yeah...I was wondering how the stock wires would handle the increasing power of aftermarket HU's.
I always ran mine seperately after I saw a guy have to pay $500 to get his whole wiring harness replaced.
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blindtech
Dodge Dakota
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11/18/2003
01:57:36
| RE: fuses
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so i don't get it, how will you send the yellow stright to the battery? can you just tap it into the amp line?
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Jim Z
GenI
11/18/2003
17:57:19
| RE: fuses
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"so i don't get it, how will you send the yellow stright to the battery?"
same way you run any amp power cable to the battery, through the firewall.
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blind tech
Dodge Dakota
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11/18/2003
18:43:54
| RE: fuses
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ok but i mean you mean to send that little wire to the battery, won't its smallness in gage cause a fire
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Jim Z
GenI
11/19/2003
12:15:47
| RE: fuses
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"ok but i mean you mean to send that little wire to the battery, won't its smallness in gage cause a fire"
Why would it?
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blind tech
Dodge Dakota
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11/19/2003
15:44:10
| RE: fuses
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because its smallness, i thought you can't connect a small gaged wire straight to the battery cause a small gaged wire receiving that much power will cause a fire, cause it can't handle all the power? i'm only asking cause i get my kw kde tomorrow and i want to know do i wire it to the harness i bought or do i attach another 16 gage or what ever gage that wire is and just send it straight to the battery, or can i tap it into the amp line? thanks
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Jim Z
GenI
11/19/2003
17:28:50
| RE: fuses
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"because its smallness, i thought you can't connect a small gaged wire straight to the battery cause a small gaged wire receiving that much power will cause a fire,"
?
Where do you think the wires in the dash get their power? Everything draws from the battery.
Anyway, wires do not "receive" power. Their job is to carry current from a source (in this case, the battery) to a load (the radio). The wire will only carry what current the radio needs, and the power wire supplied with the radio is sized so that it can safely carry the absolute maximum current that the radio can draw under normal conditions. connecting it to the battery does two things: 1) ensures that the radio is supplied with adequate current to make rated power, and 2) removes the need to overstress that 18 gauge power wire in the dash, and/or blow fuses.
"want to know do i wire it to the harness i bought or do i attach another 16 gage or what ever gage that wire is and just send it straight to the battery"
I wouldn't wire it in with your adapter harness. I would run the wire from the radio's connector to the battery... it's likely to be 16 or 14 gauge. Just make sure you have a fuse close to the battery like you would with any amp power cable.
"or can i tap it into the amp line?"
so am I to understand that you already have a power cable run for amplifiers? If so, then connecting the radio's battery power wire to that should be fine; it's a good, high-current and (hopefully) fused feed.
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92Dakota
Dodge Dakota
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11/21/2003
23:24:36
| RE: fuses
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You cannot tap it into the amp's power wire unless you put another inline fuse on the smaller wire after it comes off the amp's wire.
The amp's power wire may be fused at 30-80 amps. A 14 gauge wire cannot carry this much current.
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