Wire aftermarket subwoofer and amp to stock system

person371 · 06-19-2009, 05:49 PM

Recently I wired my aftermarket subwoofer and amplifier to my stock HU and system, and did it so that it worked in conjunction with the stock sub. I have the mach system with the speakers powered by the radio and the sub has its own amp. I started off by peeling off the rear passenger side panel where the stock sub and amp are located. I then unplugged the plug that goes into the stock amp. The sound inputs that go into it are not speaker level inputs but acually low level inputs (the same signal that rca cables use) which is actually a good thing. I took an old set of rca plugs (i used two of them because theres two rca inputs on my amp) and soldered them to a length of speaker wire (the inner wire of the rca cable is positive and the shielding around it is the negative). I then took the speaker wire and tapped (not cutting off) into the wires that carry the signal to the stock amp, in my case it was red/black stripes was positive and the brown/orange is negative. If I want to use my stock sub still I plug this back in, if I dont, I just leave it unplugged. I can now close this panel back up. The power and ground I ran as if I was doing an ordinary amp install. The remote turn on wire I ran to the harness in the back of the radio. The yellow/black wire in there is a 12v switched power wire that works nice for this. I have pics of this if u PM me i can mail them but do not have an image hosting site setup to post them. hope this helps out someone.

ninobrn99 · 06-19-2009, 07:21 PM

why not sign up for photobucket? it's free. you could also download EZThumbnails to do a bulk resizing.

06-19-2009, 05:49 PM	#1
person371 Wannabe Elite Explorer MA 2000 Merc Mountaineer Join Date: Dec 2007 Posts: 3 Vehicle Specs (Original Poster)	Wire aftermarket subwoofer and amp to stock system Recently I wired my aftermarket subwoofer and amplifier to my stock HU and system, and did it so that it worked in conjunction with the stock sub. I have the mach system with the speakers powered by the radio and the sub has its own amp. I started off by peeling off the rear passenger side panel where the stock sub and amp are located. I then unplugged the plug that goes into the stock amp. The sound inputs that go into it are not speaker level inputs but acually low level inputs (the same signal that rca cables use) which is actually a good thing. I took an old set of rca plugs (i used two of them because theres two rca inputs on my amp) and soldered them to a length of speaker wire (the inner wire of the rca cable is positive and the shielding around it is the negative). I then took the speaker wire and tapped (not cutting off) into the wires that carry the signal to the stock amp, in my case it was red/black stripes was positive and the brown/orange is negative. If I want to use my stock sub still I plug this back in, if I dont, I just leave it unplugged. I can now close this panel back up. The power and ground I ran as if I was doing an ordinary amp install. The remote turn on wire I ran to the harness in the back of the radio. The yellow/black wire in there is a 12v switched power wire that works nice for this. I have pics of this if u PM me i can mail them but do not have an image hosting site setup to post them. hope this helps out someone.

06-19-2009, 07:21 PM	#2
ninobrn99 Wannabe Elite Explorer Houston, TX 04 XLS Join Date: Apr 2009 Posts: 154 Vehicle Specs	why not sign up for photobucket? it's free. you could also download EZThumbnails to do a bulk resizing.