20 Most Recent Delphi TNR800 Car DVD Player Questions & Answers

https://www.carstereocode.com/unlock.php?mk=65

what is this --computer hacking code type english or go somewhere else

It needs to be unlocked and programmed by a GM dealer. I had mine done for about $75 US. When first installed it behaved just like yours - blue screen and no response.

If contacts and ribbon cable have been cleaned, all cables are in good condition and are secured properly so no condensation can get into the connections, then you may be getting overheated internal capacitors due to lack of ventillation. You can look and see if there are any swelled up capacitors or other components and check circuit board for burn marks

If you really want to. I think these are stock in newer GM's cars and trucks, you can definitly find better.

I don't know if this can help but try the following:
1- press the RPT/NAV Button untill you hear the beep.
2- hold the config button for arround 30 or 40s until you heard the beep, now a new config screen is opened.
3- try the 3rd button on the right as i remember, you will open a new screen where you can adjust the distance and the number of pulse(related to the Vehicle Speed Sensor).

4- don't try to mess with anything else like Memery clear or program Clear or anything else or i beleive you will lose the programming.

Sounds to me like the laser needs cleaning/replacing

https://www.modifiedlife.com/2005-chevrolet-silverado-stereo-wire-diagram/

I also have a DEA 500 and have the same problem let me know when you find a resolution

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/ Wiring diagram to many popular brand car stereos are given.