awhile ago i bought some new hella hyper white bulbs and cases. they came with two blue bulbs that could go into the housing but i didnt put them in yet. now i am wanting to and dont know how. the are basically a blue bulb with a black and white wire coming out of it. so the black is the ground right? and white is power? where to i splice the white wire into?

 

dont really know what your talking about, but try just running the pos and neg wires into the regular bulb wires. if there are wires for that.

 

Light bulbs are not polarity concious so it doesn't matter, but by convention black is ground. The question is why you'd want blue bulbs...

 

its an add on basically.. i have original bulbs that arent fancy. they just produce white light, but the housings have a tiny hole in the corner for these blue bulbs. can they be wired into the original headlight wiring? if black is ground, then white is just power. where in the original wiring for the headligts can i wire it so that they come on with the stock lights?

 

I think they call them "city lights".

 

****. i'll just start splicing wires together and see where that goes

 

black goes to the ground wire for the headlamp bulb, and the white needs to be spliced to the headlamp power wire, if you want them to turn on with the head lights only.

for the prking light feature, black to parking light ground, white to parking light power.

you could wire a switch for them too, just splice them like you did for the parking lights (so you don't leave them on by accident), then add a switch into the circuit.

 

what color is the headlamp power wire. theres a red wire with black strip, (dont know what that is) black wire ( ground) and another wire which i forgot the color. which one do i split the power wire into?

 

On S4's red/black wire (lo beam) and red/white wires (hi beam) are power, and the black is ground...

 

Waste of time sorry. You'll only be able to see the bulbs if the headlights are raised, and when the 55W headlights are on their light will completely overpower any blue coloured 5W bulb. You won't even notice them so I wouldn't bother. Those bulb holes are only used for fixed-headlight cars that use bulbs there as front marker lights (not "city" lights).