I have the Mach 460 audio system all stock, front right speaker is blown, so i'm replacing, can anyone guide me step by step on replacing. I'm very familiar with doing it but i don't want to fu** up my new 01 gt.

 

is it the tweeter(upper) speaker or the door mid range speaker(lower)?

 

Door speaker, and what is the size?

 

5.5x 7.5in I believe

 

and 2 ohms....................

You will need to replace that speaker with a stock ford replacement. If you have replaced the head unit you can do some wiring to run the new speakers(left and right) off of the deck.