I have this RCA Universal remote (RCU410WMS) and I am trying to program it to use it on a Magnavox TB110MW9 DTV Digital to Analog Converter. I've tried the code search method and nothing. Anyone with a solution or know of a universal remote that will work the converter box?

U get codes, if any, from the manufacturer of the remote.

Daphne, Try using auto code search feature, found on most universal remotes. Instructions should be in your manual. From one of the forums they suggested this. Place your tv on channel 3.
Point your GE universal remote at the converter box, press and hold the setup button until the red light remains lit, then press and release the DVR/AUX button. The red light will blink once.
Enter 0581 as the code, then press Power and the Converter box will turn on and your channels will pop right up.
Check the attached links,instruction,guides, read through them, as they have fixes to program remote. Good luck
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RC Controlling the Magnavox TB100MW9 Digital Analog Converter Page 2 of 2
https://answers.yahoo.com/question/index?qid=20130917205010AAu9Gpg
Remote Code Finder

To be honest I never got a universal remote to work Magnavox TB110MW9 DTV Digital to Analog Converter

No. it need a remote control to operate.

5041 on a rca remote

Try a Funai code

The code for a Magnavox Converter *Analog to Digital* to a Philips Universal Remote is 0759