tapping fuse box?
Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39093
Printed Date: May 15, 2024 at 6:28 AM
Topic: tapping fuse box?
Posted By: seanfromli
Subject: tapping fuse box?
Date Posted: September 13, 2004 at 7:49 PM
2004 Mazda 3s i am going to install an lcd monitor (clarion mva5894) dvd player (clarion vs735) fm modulator (clarion fm200) and a PS2 using a power inverter through the cigg lighter tomorrow. The dvd player will be installed inside the glove box using the brackets (same place as the oem nav system). PS2 under passenger seat......blah blah blah......My question is where do i get the power from? I have the stock stereo still and im not changing it. running a wire(s) straight to the battery is possible but then i have to worry about leaving it on overnight and draining the battery dead. So i wondered if i could use fuse taps and get the power from the fuse box. Is this a good idea? And if so which fuses should i use for my install? I need constant and accessory sources.
Thanks in advance!!
Sean
Replies:
Posted By: Charles_R_H
Date Posted: September 13, 2004 at 10:22 PM
I'd go to the ignition harness and make sure you fuse!
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ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: seanfromli
Date Posted: September 13, 2004 at 10:24 PM
using wire taps? and also to power every unit?
Posted By: Charles_R_H
Date Posted: September 13, 2004 at 10:26 PM
12volts
 | red (30A), BLACK/ red (30A)
| +
| ignition harness |
for ignition source i would use the one that looses 12 volts when you crank, some electronics are voltage sensetive and you can fry them when voltage dips when cranking ------------- ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: Charles_R_H
Date Posted: September 13, 2004 at 10:29 PM
though 3 items don't draw a lot of current, the inverter might did you get at least a 150 watt? if i'm remembering right a playstation 2's ac power intake is a little over a 100
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ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: seanfromli
Date Posted: September 13, 2004 at 10:30 PM
is this specific info for my mazda 3? and also if i tap into these wires the units already have fuses so i need to install more fuses? I know the basics and i have installed systems before but it was always with aftermarket HU and it was ez. thanks for your help
Posted By: seanfromli
Date Posted: September 13, 2004 at 10:31 PM
165 watt inverter
Posted By: Charles_R_H
Date Posted: September 13, 2004 at 10:33 PM
I may be way off, when i wire power inverters i usally go straight to the battery and wire in a relay using ignition to turn it on, you might also have need of a good noise filter or GLI or both, sometime audio from ps2 gets a little noisey since your changing dc to ac and going back into a dc system
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ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: Charles_R_H
Date Posted: September 13, 2004 at 10:37 PM
always fuse when you go to the ignition harness, you can t-tap or scotch lock, I solder tape and zip tie, i do use 2 female terminals as my fuse holder a lot, you'll probably be okay with a 10-15 amp fuse on ig and constant, probably a 20 on power inverter at the batt somebody help me if you disagree ------------- ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: seanfromli
Date Posted: September 13, 2004 at 10:42 PM
well i am not hard wiring the inverter i will plug into cigg lighter 
Posted By: seanfromli
Date Posted: September 13, 2004 at 10:43 PM
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