How do u add usb to bmw radio - Kenwood KDC-MP435U CD Player

I'm not sure whether the two will be compatable , best go to a auto audio specialist, they will know straight away if possible

0025 says code on dash display try enering 0000 or 1234. If still problematic add last 4 of car's VIN number by using car's radio example 5578 code would be 0025. Hope this helps. I am no expert but I have rebuilt my engine myself and replaced vanos timing rails. Best of luck.I hope this day

You can use this BMW 12Pin USB SD MP3 Adapter to solve the problem,hope help.

Margaret, this is free public forum , demands don't play here (free)
and you double posted. why do that.? if you wish to elaborate
try posting below 1st post, as an add.
and for better help? why not post to a BMW forum. (faster)
and no car year, posted or car options listed.

Radio year, model and Car Cell phone options.

no matter.......
the first check on all electronics, is the fuse
most radios have 3 power sources, (to make all features work)
and fuses are on all 3.
have you tried all sources, AM/FM CD, MP3 USB (if opted) .
are all modes dead?
the next check is to try all buttons on the radio. ?
is there a mute button? if car has 4 speaker try the fader lever.
front to rear. left to right , still dead.?
cycle modes. radio, cassette, CD 6 pack , what ever, but do cycle them all as older cars the mode switch can stick.

The RDS is radio station text messages. for song titles.
including time, station identification and programme information.
if this part really works, the RDS part this means the radio is working, but the power amp is dead or muted.
try balance and fader.
many radios (1000s) have fuses in the radio for the speaker amp
that can blow. (shorted speaker wires a prime reason)
or some have in line fuse. and others are in the cars fuse box
which varies by maker or model year.

ok , im looking at the stock radio on level C stock 1991 radio
and even back when (stock to me) the is RADIO muting
so if your car has Cell phone muting bingo that.
and a fuse at rear of radio, (unstated purpose)
guessing,id say there is lamp that glows, CELL mute?


conclusion, no car year stated, or year radio of not origional.

best advice i can help you with is modernise and fit a aftermarket radio which has usb and sd card support then you will not need the additional CD player in the boot ,old hat now these things when you play a 1 gb sd card and have 30 cds on it .

It will depend on the radio MAKE and MODEL
Try asking here

www.ukbookshelf.co.uk

as they offer free advice+code for these older BMW radios

To put the original back in just hope the harness behind the radio wasant cut into. If its not it should just plug right in and mount back up in the stock location.

as far as the cd changer. if you would want to add one. you would need to find the changer, harness and headunit from a model with one.

If the radio is displaying code wait, or wait, then the ignition and radio must remain on for 1hour. I would contact a dealer within the USA and provide them with your radio serial number. The serial number can be displayed in the radio by pressing and holding down the "M" button while turning on the ignition.

I solved my own problem.1 I removed radio face 2 I removed back cover of radio face to expose USB solder joints.3 I drilled a hole in the back cover of radio face over solder joints 4 I drilled a hole in front cover of radio behind face plate and lined it up with hole in back cover of face plate.5 I cut the male plug off of a USB extension cord and ran it through factory notch on the back of radio,through drilled hole on front panel of radio, thruogh drilled hole on back cover of radio face and soldered wires to back side of USB plug in. Wire colors from top to bottom are Red, White, Green, Black. Solder sheild to any of the three larger solder joints next to these connections. Make sure wires are not touching any other connections. Put radio back together and add screw that locks face to radio. Face can no longer be removed with this wire added. Now I can plug in my 8gb memory stick,hide it under the dash and have a clean looking installation.