How do i detach the faceplate of a pioneer deh-p3700mp car stereo?

Did you clean the contacts on both the face and the sub-panel? What did you use to clean the contacts with? Sometimes cleaning the contacts with a pencil eraser will work a little better.

Any good car audio store or maybe even walmart should have the wire harness and kit you need.

I can scan and e-mail any pages you may need.

that plug at the back is not for sat radio. It is for use with steering wheel controls. You have the blue plug at rear of stereo and that is the plug for sat radio. Ericson electronics is contracted to build the sat compatible units that wire into this radio through the blue. plug. if you are using 3.5 plug audio control from a portable sat receiver, the you will need to buy an aux input cable for your stereo..

This is a option you can disable in the menu, it is meant to make it easier to detach the faceplate when you leave the car

It could just be a plastic clip that broke.Most of the car stereo's ive taken apart only have a thin ribbon of wires that run into the contacts that your face plate connects to.If you actually took screws out of the faceplate then id put them back in and put it back into your stereo and see if it illuminates properly,if it does not then id search on E-BAY or contact pioneer and buy a replacement but most the time it would be cheaper to just buy new stereo.You might want to be more specific with the area you took screws out of,the way im reading it sounds like you unscrewed the screws in the face dock, not the faceplate.Hope this helps.

e-bay

do you want the detachable face or the case to hold the detachable face?

Here is the detachable face at the Pioneer site:

http://parts.pioneerelectronics.com/part.asp?productNum=XXA7322

Here is the case for the detachable face:

http://parts.pioneerelectronics.com/part.asp?productNum=CXB3520

You might find the face, or even the whole radio with face cheaper on ebay.

when it opens to eject the cd, i think you just pull it straight out. i didn't have this same model, but that's how mine worked.

Unsnap the trim ring and you will see a slot in the center of each side. Insert a pair of Pioneer radio removal keys which any Car Audio shop should have lying around and will probably give you for free.