I just recently bought a 2007 Mazda3 and the guy who owned it before had the satellite radio hooked up instead of the auxiliary. The car has both but you can only have one hooked up at a time. They told me to go to a place but it costs 300 to switch. Is there an easier way to do this?

 

$300...... wow, just wow.

Okay, first and foremost don't pay anyone anything to do this. Removing the HU is a matter of releasing ~5 tension clips and removing two screws. That's it! Once you have it out you simply unplug the sirius harness from the back of the HU and plug the ACI harness into the plug the sirius just vacated. You may need to look around for the ACI plug as it's usually tied off to another cable, or tucked behind a panel to keep it from rattling around. Anyway just reinstall the HU and you're good to go...... the whole thing should take you less than 10 minutes start to finish. HERE's a pretty good walkthrough that includes instructions on how to remove the HU. The only thing I'll add to that is that the dash strip has a hook on the far right, not a clip. I recommend releasing the clips between the LCD and the hook and then gently flexing the strip to release the hook. OR releasing all the clips and then sliding the hook free.

 

thanks alot man I'll tell you how it goes