Hello,
Here's my story.. 2004 Roadster Touring. Originally with Bose w/o Navi. Swapped out head unit with Pioneer Avic 8000. Professionally installed. Bose sub amp died once and replaced it. This one has now crapped out. Want to bypass Bose sub amp and subwoofer with my Sound Ordnance self powered subwoofer model B-8PTD. In the pic is the stock Bose sub woofer harness to the Bose sub amp. In the background is the Sound Ordnance connections. I've checked the Crutchfield wiring and I can't be certain which is what. Red hot, black ground...
Not shown in the pic is where the stock harness connects to the Stock Bose subwoofer. Help? Thanks ahead of time
Bobby

 

I'd dump the Bose adapter harness in the trash and wire the new sub to the Pioneer as recommended by the manufacturer. KISS is your friend here. And , get yourself a decent VOM before doing any wiring on your car.

 

yeah defiantly trash it all.


wire amps to the headunit

 

Straight to the H/U will allow you to use the low-level (RCA) inputs, which are preferred to the high level (speaker) inputs. Also, I'm sure the AVIC has sub controls built in... selectable low pass, sub volume, etc... Won't be able to use those with the factory harness.

 

Yeah you are probably going to want at least 8 gauge power and ground wires... Then just run rca cables and remote turn on from head unit... Nobody is going to recommend using the bose amp harness.