I have been told that this can't be done. Therefore, I am attempting it.
The reason is to get a sat-enabled factory head into a non-sat-enabled vehicle.
I have been able to source an 04 Mach 460 head from a 2004 Expedition, complete with wiring harness that is taped together with two plugs. The two units are indeed different in terms of plugs, which is probably why most people said it could not be done. However, the way I look at that is the wiring is the major part...the plugs are just adaptive retention mechanisms into the back of the head. As long as I have the plug, I should be able to make things work by wire splicing. It is my reasoning that Ford would not significantly change the wiring color codes in a single year's production.
There are two plugs on my pigtail, one is for main power/ground/speaker and the other is for subwoofer out. All are speaker level of course.
I have been able to determine, using readily available schematics on the web (they are not 2003 Cobra specific), that the 8-pin sub out is wired identically to the 03 mach 460. For some reason Ford/Visteon decided to include an orange wire in the right rear sub bundle, which is not used in the plug...it's just not connected to anything. That is the only difference in the 8-pin sub out...basically they are 3-wire with a shielded ground in each bundle.
The main harness is more difficult. I have been able to determine that the main power bus, ground leads, right door speaker, right rear speaker, and left door speaker are the same. However the leads for the left rear speaker are not a color code match, and there is one lead that is extraneous over the 2003 installation. One wire, tan with yellow tracer, has been verified as #801 on the schematic for the left rear speaker. One other lead, white with orange tracer is gauge identical but does not appear on the diagram. I suspect that this is #800 but would have to test. The one extraneous lead is violet and is significantly larger in gauge, similar to the wires coming in from the main bus which are constant-on and switched-on. Unfortunately when tracing this one lead back to the plug for the head, it is the #1 lead in the plug. It makes sense that this would need to be either constant-on or switched-on...but I need to know before I make a wire splice. The fact that the pin directly opposite to this wire is black with a light green tracer, a ground, does not make me feel any easier that this is a power or a ground lead...however it appears that Ford uses violet on a lot of their 12v+ power in leads.
I am going to check my 2003 Cobra wiring schematic when I get time, to see if there is a solid violet wire anywhere on the vehicle and what it does.
Anybody gotten to this point yet? Anybody have a 2004+ schematic handy?
It looks pretty straightforward from here, it's just I want to do it right the first time. I don't want to take my dash apart multiple times just to get this done. Any help is appreciated...
I have been able to source an 04 Mach 460 head from a 2004 Expedition, complete with wiring harness that is taped together with two plugs. The two units are indeed different in terms of plugs, which is probably why most people said it could not be done. However, the way I look at that is the wiring is the major part...the plugs are just adaptive retention mechanisms into the back of the head. As long as I have the plug, I should be able to make things work by wire splicing. It is my reasoning that Ford would not significantly change the wiring color codes in a single year's production.
There are two plugs on my pigtail, one is for main power/ground/speaker and the other is for subwoofer out. All are speaker level of course.
I have been able to determine, using readily available schematics on the web (they are not 2003 Cobra specific), that the 8-pin sub out is wired identically to the 03 mach 460. For some reason Ford/Visteon decided to include an orange wire in the right rear sub bundle, which is not used in the plug...it's just not connected to anything. That is the only difference in the 8-pin sub out...basically they are 3-wire with a shielded ground in each bundle.
The main harness is more difficult. I have been able to determine that the main power bus, ground leads, right door speaker, right rear speaker, and left door speaker are the same. However the leads for the left rear speaker are not a color code match, and there is one lead that is extraneous over the 2003 installation. One wire, tan with yellow tracer, has been verified as #801 on the schematic for the left rear speaker. One other lead, white with orange tracer is gauge identical but does not appear on the diagram. I suspect that this is #800 but would have to test. The one extraneous lead is violet and is significantly larger in gauge, similar to the wires coming in from the main bus which are constant-on and switched-on. Unfortunately when tracing this one lead back to the plug for the head, it is the #1 lead in the plug. It makes sense that this would need to be either constant-on or switched-on...but I need to know before I make a wire splice. The fact that the pin directly opposite to this wire is black with a light green tracer, a ground, does not make me feel any easier that this is a power or a ground lead...however it appears that Ford uses violet on a lot of their 12v+ power in leads.
I am going to check my 2003 Cobra wiring schematic when I get time, to see if there is a solid violet wire anywhere on the vehicle and what it does.
Anybody gotten to this point yet? Anybody have a 2004+ schematic handy?
It looks pretty straightforward from here, it's just I want to do it right the first time. I don't want to take my dash apart multiple times just to get this done. Any help is appreciated...