Friends,

I just finished installing a older Pioneer Premier DEHP840MP. This was one of the first high end MP3 CD players made. It is silver with a dual fold down face plate and I must say it looks awesome in the console. The silver is perfect match. If I had to do this install again I would make one change to the above instructions.

Instead of cutting pins 6,7,1 and 2, I would cut pins 10,9,8 and 3. The reason is the harness adapter has wires in the proper location for the front speakers. Since the wires are already there in the proper location for the front speakers, they should be used for the front speakers. Then you can use your new wire then to drive the subs instead of the front channels.

Hindsight is 20/20.

Now for a question. My Pioneer has an "Illumination" lead. There was no matching lead on the car harness side. Does anyone know the best location to connect this illumination lead? It is just disconnected for now.

Regards,
John

PS. the RCA Preamp leads of this pioneer head unit drove the amp just fine and there no extra noise anywhere.

PPS. Wingman yous summary is correct, just switch the cut wires like I say for a more proper install.