So the other day I decided to put an after market head unit into my 1986 Crown Vic. After I put it in it kept blowing the five amp fuse which is also for the dash lights. To fix this I ran a wire from the battery straight to the head unit and gave it it's own fuse. However the dash lights still don't work. I checked the fuse and its good so I'm not sure what the problem could be. I wasn't to sure what to do with some of the wires behind the head unit because I didn't know what they went to. If anyone has an idea how to fix this or if they have a wiring e-book or in depth wiring diagram for this car I would greatly appreciate it.
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1986 Ford Crown Victoria Ltd -
did you do a continuity test on the fuse? It might look good but in reality, it could be bad. Change the fuse. What did you do with the wire that you used that was wired with the lights on the dash?Originally posted by uwantbreadbai View Post -
What wires did you tap into for the radio power? Did you connect any of the stock wiring to ground or pinch the wires?86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
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The dash itself should have some sort of voltage regulator IIRC but it sounds more like a wiring problem. Did you use a proper harness to for the install or just splice the head unit in? The 86 stereo wiring is ehhh and should be common ground so you'd probably be best running all new wires to the speakers anyhow. Also, most gauge lighting problems I hear about always seem to be tied to a crispy headlight switch.sigpic
1986 Grand Marquis LS 2 Door
Ext: Medium Shadow Blue Metallic, Int: Midnight Blue, 3.08 open, 235/70/15 Goodyear Aquatread III, Rebuilt AOD w/ Transgo Shift Kit, 3G upgrade from 95 5.0 Mustang, Walker Dual Exhaust w/ H pipe, Viper 5900ST alarm, De-smogged, Rear Civ. Sway Bar, and more.Comment
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the dash lighting should be a blue wire with light red stripe or something simmilar. You might have wired it to something or shorted it somehow as suggested.Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
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85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereoComment
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