Can I use a universal remote for mx3660d system

See the link section 5- page 54 for the procedure.

Universal Remote System Operation Using the Universal Remote System Press and hold the appropriate Universal Remote system button for at least one-half second. The indicator light will come on while the signal is being transmitted. Erasing Universal Remote System Buttons Erase all programmed buttons when vehicle ownership is terminated. To erase: 1. Press and hold the two outside buttons until the indicator light begins to flash. This should take about 10 seconds. 2. Release both buttons.

Reprogramming a Single Universal Remote System Button
To reprogram any of the system buttons: 1. Press and hold any one of the buttons. Do not release the button. 2. The indicator light will begin to flash after 20 seconds. Without releasing the button, proceed with Step 1 under "Programming the Universal Remote System.

Hope this helps?
https://www.chevrolet.com/content/dam/Chevrolet/northamerica/usa/nscwebsite/en/Home/Ownership/Manuals%20and%20Videos/02_pdf/2k14silverado.pdf

Here are some sites that will have your codes and instructions on how to enter them:

1. Universal TV Remote Control codes Universal remote control codes for all TV and VCR brands including: at&t, beery systems, bondwell, curtis mathis, dish network, ge, gemini, ...
   www.tvcodes.com/ - 23k - Cached - Similar pages -
2. Universal Remote Control Codes Universal Remote Control Codes for DVD, VCR, TV and Home Theaters System.
   www.remote-codes.com/ - 7k - Cached - Similar pages -
3. Philips Magnavox Universal Remote Code Philips Magnavox Universal Remote Code - Instructions on how to program your Philips Magnavox universal remote control.
   www.universal-remote.net/philipsmagnavox.html - 35k - Cached - Similar pages -

Here you can order a replacement

http://www.1800customersupport.com/products.aspx?type=pad&view=1503&p=79&sc=26

See ya

http://www.videohelp.com/dvdhacks?dvdplayer=mx3660&hits=50

The entire manual is available at www.safemanual.com. I jsut printed it out.

Progressive scan is turned on. Reset the player first, and then follow the instructions in the manual step by step without skipping a single detail - you are flying blind (without picture), so a single omission from the directions will cause this procedure not to work.