Cigarette and Horn not working after replacing the fuse 4 lights

Question edited for clarity, 'fuse', unless you light it 'fuze'.Question moved to sub category.

If the radio has an inline fuse, it will be within 82 of the plug at the rear. They are built into the harness. Unlikely because there are three fuses covering audio.

https://fuse-box.info/isuzu/isuzu-trooper-1992-2002-fuses-and-relays

C11 10 (AUDIO[ACC]) MIRROR Audio, Door mirror, Door mirror control SW, Door mirror folding SW, Digital clock, Speaker C12 20 CIGARETTE Cigarette lighter C13 10 ANTI THEFT Anti-theft controller C14 15 STOP A/T CONT Stoplight SW (w/o cruise control), Brake SW (w/cruise control), Rear wheel anti-lock brake controller, Stoplight, Transmission control module, Electronic brake control module, Trailer harness connector, Cruise control unit, A/T shift lock control unit, Lockup off relay C15 20 AUDIO[BJ] Horn, Horn relay, Horn SW, Hazard warning light SW, Flasher unit, Anti-theft horn, Hazard warning light, Audio C15 20 TELEPHONE Telephone C16 10 CLOCK[B] ROOM Digital clock, Audio, Dome light, Map light, Luggage room light, Courtesy light, Door SW (Front, rear, tail gate), Antenna, Anti-theft controller, Key remind SW, Seat belt, Key & light remind buzzer

Fuse 4 does the cigarette light and the side mirrors. Do the mirrors work?
4 15A Cigarette lighter and control system for side mirrors


Fuse 6 does tail lights
6 15A Stop lights
Fuse 14 does the Dash Lights
14 10A Interior lighting and luggage. compartments, clock, radio or radio tape recorder, instrument cluster, central door lock control unit, engine control unit, automatic transmission control unit
If all those fuses are okay, you need a good auto-electrician.

https://fuseandrelay.com/mitsubishi/mirage.html

..

Fuse box in passenger compartment Alfa Romeo 156.
fuse box location.
The fuses for the main devices are housed in a control unit under the dashboard, to the left of the steering column. To gain access to them, remove the panel (A) releasing the tabs (B) in the direction of the arrow below and remove the screw (C).

fuse box layout.

1 Ignition auxiliary circuits relay 1 2 Heated rear window relay 3 Horn relay F1 (10A) RH headlamp- high beam F2 (10A) Headlamp high beam warning lamp, LH headlamp-high beam F3 (20A) Boot lid/tailgate lamp, central locking F4 (10A) Headlamp adjustment, RH headlamp-low beam F5 (30A) Electric windows(front) F6 (10A) LH stop lamp, LH tail lamp, RH licence plate lamp, RH rear fog lamp, RH side lamp F7 (10A) LH licence plate lamp, LH rear fog lamp, LH side lamp, RH stop lamp, RH tail lamp F8 (10A) LH head lamp-low beam F9 (15A) Cigarette lighter, heater/air conditioning (AC) F10 (20A) Wind screen wash/wipe system F11 (20A) Horn F12 (10A) Alarm system, anti-lock brake system (ABS)(with ESP), audio system, instrument panel, interior lamps F13 (10A) Anti-lock brake system (ABS), central locking, electric door mirrors, electric windows, glove box lamp, reversing lamps, stop lamp (high level) F14 (10A) Hazard warning lamps F15 (30A) Door mirror heater, heated rear window

My first guess would be a blown fuse for the tail lights and cigarette lighter. Check the rear window lock out button on the window switch.

fuse

horns only one of to wires takem reroute same route new wires u have a short between the fuse box n the horn befor u put to much money into fuses they can be pricey when u add them all up shop costs n total just re place ur to horn wires

If there is no power to the sockets, changing the bulb wont correct the problem. Check all fuses. Check for current to the tailight. Check for ground to the tailight. Repair as nesessary.
Check cigarette lighter filament. It may be faulty. Check inside cigarette lighter socket. It may have a foreign material in it causing the short.

hope this helps. if u have any other questions just let me know




Fuse locations for options not shown can be found in the corresponding wiring diagrams.
Amp.


1 - Headlight, Low Beam, Left (56b) 10
2 - Headlight, Low Beam, Right (56b) 10
3 - License Plate Lights (5 10
4 - Rear Window Wiper And Washer System 15
5 - Windshield Wiper/Washer 15
6 - Fresh Air Blower, A/C (X) 20
7 - Tail Lights, Right (58R) 10
8 - Tail Lights, Left (58L) 10
9 - Rear Window Defogger 20
10 - Fog Lights 15
11 - Headlight, High Beam, Left (56a) 10
12 - Headlight, High Beam, Right (56a) 10
13 - Horn (15) 10
14 - Back-Up Lights 10
15 - Engine Electronics (15) 10
16 - Power Sunroof, Front Map/Reading Light 15
17 - Emergency Flashers (15) 10
18 - Fuel Pump (FP), Heated Oxygen Sensor (HO2S)
Control Module 20
19 - Coolant Fan, A/C Relay (30) 30
20 - Brake Lights (30) 10
21 - Interior Lights, Clock, Luggage Compartment
Light (30) 15
22 - Cigarette Lighter, Radio, Luggage Compartment
Release 10

Separate Fuses

(Located above the relays)



- Fuse for ABS hydraulic pump relay 30
- Fuse for ABS main relay 30
- Fuse for A/C 30
- Fuse for power windows 20
- Fuse for cruise control 5
- Fuse for cigarette lighter 15