Thanks guys for the info it will set me in the right direction, i have another request regarding 69-70 door speakers, if someone has a NOS or an original working 69-70 door speaker could you please take an ohm reading at speaker connectors to see what reading you get, i am getting reports that 8 ohms is what they were from the factory VS the 4 ohm aftermarket ones that are availible today that might damage an original am/fm or am 8 track player i tried to find a spec on them but came up dead ended, thanks much, chuck.