thanks for replying,..my friend has an old school (1996) Pioneer Premier DEH-49 am/fm CD head unit,which he is missing the 12-pin harness from. the stereo shop quoted us $49.oo for the damn thing!! ofcourse we can't do much without the harness,however...if someone here has a similar radio and can tell me which wires are where in the 12-pin configuration,I would have no problems hooking this up without the harness! I would like to just de-solder the female connector from the circuit board and solder color coded wires directly to the board.....saving my friend $50!!

 

call up pioneer directly and see how much they want for it. if your soldering straight to the pins thats not a good idea IMO. If say your ground came loose, or broke the pinn hitting a bump (they are pretty thin) and came in contact with the memory if your not using fuses .. then thats bad. Even with a fuse its still a pain, or if he wanted to sell it to someone that will have the same problem as you. Order the wire harness and be safe (and easier)i think. But, its just a opinion.
~Tim

 

de-soldering the female connector from the board and soldering the correct guage wire directly into the board is perfectly ok,ofcourse it involves taking the radio apart a little. that would save me about $30. finding the ground and acc/mem would be easy,but getting the correct polarity for the speakers is what I'm worried about....although nothing will be powered from th HU when this system is done....hmmm..

 

GO-HO AUDIO in Newport News,VA wanted $65 for the replacement pioneer harness!! but the man there did tell me that the 12 pins are actually labled on the green side of the circuit board. he was 100% correct! (BUP,back up power,ACC,REM,RL+,RL-,FR+ ect......) there were only 12 pins. I bought a de-soldering vaccume for $6.99 and my friend bought a GM wiring harness for $4.99. the entire pioneer HU had to come apart,first the top cover,then the CD player,then the main circuit board & amp......finally I could get at the bottom of the circuit board! using a cheap radioshack 15 watt soldering iron,which works more like a 0.15 watt iron,I connected all but the orange (park. lights) wire to the board. it was a bit of a pita,but saving $65 and replacing a piece of junk AC Delco system with a beautiful Pioneer Premier made it all worth it.