After I installed HID Headlights, my 2 12' subwoofers started cutting on and off. Now my subs, the dash lights, and the tailights won't work but my headlights do. Also, the Tail light fuse keeps blowing as soon as I replace it. Checked my alternator, starter, and battery and is all fine.

hello same pronlem with my 98 durango but right turn signal!

what it was is the 4 pin connector for the tow package had the insulationripped off them i guess whe backing out of a steep driveway it sxrapped! so the headlights, turn signals, and brake circuits where grounding out! quick fix!

just cut and capped that mess!

good luck

check your negtive wire from battery to ground ,in other words, to body of vechile.

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These details will help.
Thanks.

Where are you buying these alternators and how long after installing the hid lighting did the problem start. also how many and which lights, just headlights.

Sounds as if you may have a short did you check the bulbs? I would check the bulbs and make sure they are good. when you lift the rear hatch lid search around the wires and see if you have a exposed wire or perhaps a loose wire connection. Allot of times wires in a vehicle that year start getting frayed and worn from putting different items in the rear of the vehicle.

sounds like it is time to replace the combination/light switch.

The relay has nothing to do with the tail lights, but replacing the switch sounds like a good idea. There's a nut holding it in place, see http://www.skandix.de/en/spare-parts/electrics/switches/switch-headlight/1027524/ to get an idea of the construction. And the price. This is not worth fiddling about unreliable workarounds...
In addition, if fuses 15 and/or 16 burn frequently there might be a problem with the tail light cabling.

Good luck
Ingo

did you check the tailight bulbs?
I heard a rumour that if your tail lights go out it will diable your dash lights has a warning to driver.
let me know..

Start by setting your auto headlight switch to off if this solves it replace your headlight switch If your car is equipped with daytime running lights there could be a short bridging them with your auto head lights look for broken or frayed wires do this also if you have installed or had someone install an aftermarket stereo or speakers/sub woofer, amplifier. Good Luck with this

Yes the sun load sensors can go bad. Do you have a dash mat covering the sensor?