I have an alpine 11 band EQ/sound field controller 3342.how do i connect the power supply wires??i have a pink w/white stripe,blue w/white stripe,yellow,an black.

If you contact Alpine they will be able to tell you if there is an adapter that will plug right into your existing OEM harness. If not then, you'll have to figure out Which wires are which on your OEM harness, here is the Alpine wire code:
Alpine wiring help

HU harness color code pretty much universal.
red=ignition
yellow=battery +
black=ground
blue/white=remote turn on
blue=power antenna
pink/black=audio interupt in (not sure if you have one)
speaker wires
gray=right front
violet=right rear
green=left rear
white=right rear
speaker wire with black stripes is negative.

That would be the remote wire to turn on and off your amp.

Check the dealer to see if they have a pig tail to wire in. if so the new pigtail should have same wire color for matching up.

12V CONSTANT WIRE RED and PINK/BLACK Ignition harness
12V IGNITION WIRE DARK BLUE Ignition harness
12V ACCESSORY WIRE BLACK/ORANGE Ignition harness
STARTER WIRE YELLOW Ignition harness
PARKING LIGHTS (+) BLACK/YELLOW At Headlight switch
POWER DOOR LOCK (5-wire reverse polarity) ORANGE/PURPLE Harness Coming Into Vehicle From Driver's
Door
POWER DOOR UNLOCK (5-wire reverse
polarity)
PINK/PURPLE Harness Coming Into Vehicle From Driver's
Door
DOOR TRIGGER (-) YELLOW/BLACK At Headlight Switch
DOMELIGHT SUPERVISION (-) Use door trigger
TRUNK TRIGGER (-) GRAY/BLACK At Light In Trunk
TACHOMETER WIRE TAN/BLUE or BLACK/GRAY At Ignition Coil
BRAKE WIRE (+) WHITE/BROWN At Brake Pedal Switch
HORN TRIGGER (-) BLACK/RED Harness Coming From Steering Wheel At
Column
CAUTION! SRS airbag wires are not enclosed in protective loom at the steering column. They are a twisted pair of wires that run with rest of
ignition harness. Be careful not to cut or probe these wires.

Radio:

(Black plug)
Rear Right speaker -: Blue w/White stripe
Rear Left speaker -: Brown w/Yellow stripe
Front Right +: Purple
Front Left +: Dark Green
Rear Right speaker +: Blue w/Orange Stripe
Rear Left speaker +: Brown w/Blue Stripe
Power Antenna/Amp: White
(Gray Plug)
+12v battery wire: Pink or Pink w/White Stripe
+12v Ignition wire: Red w/ White Stripe
Front Right speaker -: Blue w/ Red Stripe
Front Left speaker -: Brown w/ Red Stripe

go to alpin.com and find the manual for the eq http://vault.alpine-usa.com/products/documents/OM_ERE-G190.PDF

http://www.tintingbyfredjohnson.com

For Dodge Neons:
Factory in-dash wire harness has 2 pc harness (black plug and gray plug).

(Black plug)
Rear Right speaker -: Blue w/White stripe
Rear Left speaker -: Brown w/Yellow stripe
Front Right +: Purple
Front Left +: Dark Green
Rear Right speaker +: Blue w/Orange Stripe
Rear Left speaker +: Brown w/Blue Stripe
Power Antenna/Amp: White
(Gray Plug)
+12v battery wire: Pink or Pink w/White Stripe
+12v Ignition wire: Red w/ White Stripe
Front Right speaker -: Blue w/ Red Stripe
Front Left speaker -: Brown w/ Red Stripe
Metal braid plastic connector attached to back of radio is the ground wire.

Blue goes to your head unit's blue wire. It switches the eq on when the head unit is switched on. It also gets tied into the amp's blue wire (if you are using an amp, and I guess you are since you have a passive eq...). The fact that there are 2 is just for conveinience I think (99% sure) If I recall one may have a white stripe, and the other none. If you want to be sure, with all power DISCONNECTED to everything, and the harness plugged into the EQ, use a multimeter to see if there is continuity (connection) between the 2 blue wires. Then you can rest assured they gave you a secind one just for a "pass thru" to your amps, but inside they are electrically connected, and are essentially the same piece of wire.

USE THE FOR CH RUN ALL THE SPEAKER THE MEANS TWO RCA ONE FOR FRONT AND ONE FOR REAR INTO THE AMP AND NON-FADE REAR-FOR YOUR SUB --POWER FOR EQ--[POWER 'REMOTE AND GROUND]

You connected your blue alpine wire (power antenna) to your blue wire (amplifier remote on) on the BMW harness adapter. You need to undo this, amputate your blue alpine wire (because your E36 has no power antenna) and connect the alpine blue wire with white stripe (remote power) to your blue wire on the harness adapter.

When you switch source from the radio, alpine is shutting off your amplifier through the connected power antenna wire. Since you're not listening to the radio anymore, it sees no reason why it should give it power.

to have them work you have to connect the yellow wire to constant 12 volt power,and the red to blue and white wire coming from the radio if you dont have a blue remote wire on the radio connect it to the accessory of the car wire that power the radio