ok recentlly i added a header and a magnaflow exhaust and neither one of these should be causing the problem im having my spedometer quit working so of course i check the fuses ok it was blown replace it it blows again and no im not stupid i put the right fuse back in so ok im driving along to work and my cd player just stops working go to lunch turn my car on cdplayer works and then quits after about ten minutes when i turned off my car i noticed the my doors didnt automaticlly unlock so i turn my car on or attempt to and it had a hard time doing that kinda seemed like the battery was dying so im thinking its my alternator " and i did put aem underdrive pullies on if this helps anyone but i put those on a few weeks ago." but that dosent explain the spedo fuse blowing twice hope someone could help out

 

prob a grounded power wire that is causing the fuse to blow.

 

check your grounds (battery and chassis)

alternator might be going

possibly a shorted wire somewhere

 

problem all fixed thanks guys for the input