I tried this in the Cummins section, but I didn't get the answer I needed...

Does the factory headunit on the 2006 have a dimmer capability? I mean...does it dim when you dim the dash panel lights?

I've got an Alpine HU installed and I've just realized that it doensn't dim when I dim the dash lights. I know the new HU has that ability. I'm wondering if my install guy just didn't connect the dimmer wire...?? Also, my truck came with the basic 4-speaker sound system.

I've looked at the wiring diagram from the service manual, and (unless I'm missing something) there doesn't seem to be a dimmer connection to the stock radio.

I pulled the unit out and checked all the wires. The wires in the stock connector all match up to wires on the Alpine harness except for two (connector C1, pin 5 and 6) which are the CAN B Bus (+) and (-) wires...they don't correspond to anything on the new harness.

Also, I noticed that the Orange dimmer wire from the Alpine harness doens't match to anything on the stock connector.

Any thoughts? Thanks.

-Nate

 

Usually aftermarket decks cant dim......You can dim it with the radio settings, you jst cant use the factory dimmer.